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Theorem lcmfunsnlem2lem2 15333
Description: Lemma 2 for lcmfunsnlem2 15334. (Contributed by AV, 26-Aug-2020.)
Assertion
Ref Expression
lcmfunsnlem2lem2 (((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) ∧ (𝑛 ∈ ℤ ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ (∀𝑘 ∈ ℤ (∀𝑚𝑦 𝑚𝑘 → (lcm𝑦) ∥ 𝑘) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛))))) → (lcm‘((𝑦 ∪ {𝑧}) ∪ {𝑛})) = ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛))
Distinct variable groups:   𝑦,𝑚,𝑧   𝑘,𝑛,𝑦,𝑧,𝑚

Proof of Theorem lcmfunsnlem2lem2
Dummy variable 𝑖 is distinct from all other variables.
StepHypRef Expression
1 elun 3745 . . . . . . . . . . . 12 (𝑖 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ↔ (𝑖 ∈ (𝑦 ∪ {𝑧}) ∨ 𝑖 ∈ {𝑛}))
2 elun 3745 . . . . . . . . . . . . . 14 (𝑖 ∈ (𝑦 ∪ {𝑧}) ↔ (𝑖𝑦𝑖 ∈ {𝑧}))
3 simp1 1059 . . . . . . . . . . . . . . . . . . 19 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → 𝑧 ∈ ℤ)
43adantr 481 . . . . . . . . . . . . . . . . . 18 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → 𝑧 ∈ ℤ)
54adantl 482 . . . . . . . . . . . . . . . . 17 (((𝑖𝑦𝑖 ∈ {𝑧}) ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → 𝑧 ∈ ℤ)
6 sneq 4178 . . . . . . . . . . . . . . . . . . . . 21 (𝑛 = 𝑧 → {𝑛} = {𝑧})
76uneq2d 3759 . . . . . . . . . . . . . . . . . . . 20 (𝑛 = 𝑧 → (𝑦 ∪ {𝑛}) = (𝑦 ∪ {𝑧}))
87fveq2d 6182 . . . . . . . . . . . . . . . . . . 19 (𝑛 = 𝑧 → (lcm‘(𝑦 ∪ {𝑛})) = (lcm‘(𝑦 ∪ {𝑧})))
9 oveq2 6643 . . . . . . . . . . . . . . . . . . 19 (𝑛 = 𝑧 → ((lcm𝑦) lcm 𝑛) = ((lcm𝑦) lcm 𝑧))
108, 9eqeq12d 2635 . . . . . . . . . . . . . . . . . 18 (𝑛 = 𝑧 → ((lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛) ↔ (lcm‘(𝑦 ∪ {𝑧})) = ((lcm𝑦) lcm 𝑧)))
1110rspcv 3300 . . . . . . . . . . . . . . . . 17 (𝑧 ∈ ℤ → (∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛) → (lcm‘(𝑦 ∪ {𝑧})) = ((lcm𝑦) lcm 𝑧)))
125, 11syl 17 . . . . . . . . . . . . . . . 16 (((𝑖𝑦𝑖 ∈ {𝑧}) ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → (∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛) → (lcm‘(𝑦 ∪ {𝑧})) = ((lcm𝑦) lcm 𝑧)))
13 breq1 4647 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑘 = 𝑖 → (𝑘 ∥ (lcm𝑦) ↔ 𝑖 ∥ (lcm𝑦)))
1413rspcv 3300 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑖𝑦 → (∀𝑘𝑦 𝑘 ∥ (lcm𝑦) → 𝑖 ∥ (lcm𝑦)))
15 dvdslcmf 15325 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → ∀𝑘𝑦 𝑘 ∥ (lcm𝑦))
16153adant1 1077 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → ∀𝑘𝑦 𝑘 ∥ (lcm𝑦))
1716adantr 481 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → ∀𝑘𝑦 𝑘 ∥ (lcm𝑦))
1814, 17impel 485 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑖𝑦 ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → 𝑖 ∥ (lcm𝑦))
19 lcmfcl 15322 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → (lcm𝑦) ∈ ℕ0)
2019nn0zd 11465 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → (lcm𝑦) ∈ ℤ)
21203adant1 1077 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → (lcm𝑦) ∈ ℤ)
2221adantr 481 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → (lcm𝑦) ∈ ℤ)
23 lcmcl 15295 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝑧 ∈ ℤ ∧ 𝑛 ∈ ℤ) → (𝑧 lcm 𝑛) ∈ ℕ0)
243, 23sylan 488 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → (𝑧 lcm 𝑛) ∈ ℕ0)
2524nn0zd 11465 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → (𝑧 lcm 𝑛) ∈ ℤ)
2622, 25jca 554 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → ((lcm𝑦) ∈ ℤ ∧ (𝑧 lcm 𝑛) ∈ ℤ))
2726adantl 482 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑖𝑦 ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → ((lcm𝑦) ∈ ℤ ∧ (𝑧 lcm 𝑛) ∈ ℤ))
28 dvdslcm 15292 . . . . . . . . . . . . . . . . . . . . . . . 24 (((lcm𝑦) ∈ ℤ ∧ (𝑧 lcm 𝑛) ∈ ℤ) → ((lcm𝑦) ∥ ((lcm𝑦) lcm (𝑧 lcm 𝑛)) ∧ (𝑧 lcm 𝑛) ∥ ((lcm𝑦) lcm (𝑧 lcm 𝑛))))
2928simpld 475 . . . . . . . . . . . . . . . . . . . . . . 23 (((lcm𝑦) ∈ ℤ ∧ (𝑧 lcm 𝑛) ∈ ℤ) → (lcm𝑦) ∥ ((lcm𝑦) lcm (𝑧 lcm 𝑛)))
3027, 29syl 17 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑖𝑦 ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → (lcm𝑦) ∥ ((lcm𝑦) lcm (𝑧 lcm 𝑛)))
31 ssel 3589 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝑦 ⊆ ℤ → (𝑖𝑦𝑖 ∈ ℤ))
32313ad2ant2 1081 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → (𝑖𝑦𝑖 ∈ ℤ))
3332adantr 481 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → (𝑖𝑦𝑖 ∈ ℤ))
3433impcom 446 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑖𝑦 ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → 𝑖 ∈ ℤ)
3522adantl 482 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑖𝑦 ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → (lcm𝑦) ∈ ℤ)
3625adantl 482 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝑖𝑦 ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → (𝑧 lcm 𝑛) ∈ ℤ)
37 lcmcl 15295 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((lcm𝑦) ∈ ℤ ∧ (𝑧 lcm 𝑛) ∈ ℤ) → ((lcm𝑦) lcm (𝑧 lcm 𝑛)) ∈ ℕ0)
3835, 36, 37syl2anc 692 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝑖𝑦 ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → ((lcm𝑦) lcm (𝑧 lcm 𝑛)) ∈ ℕ0)
3938nn0zd 11465 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑖𝑦 ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → ((lcm𝑦) lcm (𝑧 lcm 𝑛)) ∈ ℤ)
40 dvdstr 14999 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑖 ∈ ℤ ∧ (lcm𝑦) ∈ ℤ ∧ ((lcm𝑦) lcm (𝑧 lcm 𝑛)) ∈ ℤ) → ((𝑖 ∥ (lcm𝑦) ∧ (lcm𝑦) ∥ ((lcm𝑦) lcm (𝑧 lcm 𝑛))) → 𝑖 ∥ ((lcm𝑦) lcm (𝑧 lcm 𝑛))))
4134, 35, 39, 40syl3anc 1324 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑖𝑦 ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → ((𝑖 ∥ (lcm𝑦) ∧ (lcm𝑦) ∥ ((lcm𝑦) lcm (𝑧 lcm 𝑛))) → 𝑖 ∥ ((lcm𝑦) lcm (𝑧 lcm 𝑛))))
4218, 30, 41mp2and 714 . . . . . . . . . . . . . . . . . . . . 21 ((𝑖𝑦 ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → 𝑖 ∥ ((lcm𝑦) lcm (𝑧 lcm 𝑛)))
434adantl 482 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑖𝑦 ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → 𝑧 ∈ ℤ)
44 simpr 477 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → 𝑛 ∈ ℤ)
4544adantl 482 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑖𝑦 ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → 𝑛 ∈ ℤ)
46 lcmass 15308 . . . . . . . . . . . . . . . . . . . . . 22 (((lcm𝑦) ∈ ℤ ∧ 𝑧 ∈ ℤ ∧ 𝑛 ∈ ℤ) → (((lcm𝑦) lcm 𝑧) lcm 𝑛) = ((lcm𝑦) lcm (𝑧 lcm 𝑛)))
4735, 43, 45, 46syl3anc 1324 . . . . . . . . . . . . . . . . . . . . 21 ((𝑖𝑦 ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → (((lcm𝑦) lcm 𝑧) lcm 𝑛) = ((lcm𝑦) lcm (𝑧 lcm 𝑛)))
4842, 47breqtrrd 4672 . . . . . . . . . . . . . . . . . . . 20 ((𝑖𝑦 ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → 𝑖 ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛))
4948ex 450 . . . . . . . . . . . . . . . . . . 19 (𝑖𝑦 → (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → 𝑖 ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛)))
50 elsni 4185 . . . . . . . . . . . . . . . . . . . 20 (𝑖 ∈ {𝑧} → 𝑖 = 𝑧)
5121, 3jca 554 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → ((lcm𝑦) ∈ ℤ ∧ 𝑧 ∈ ℤ))
5251adantr 481 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → ((lcm𝑦) ∈ ℤ ∧ 𝑧 ∈ ℤ))
53 dvdslcm 15292 . . . . . . . . . . . . . . . . . . . . . . . 24 (((lcm𝑦) ∈ ℤ ∧ 𝑧 ∈ ℤ) → ((lcm𝑦) ∥ ((lcm𝑦) lcm 𝑧) ∧ 𝑧 ∥ ((lcm𝑦) lcm 𝑧)))
5453simprd 479 . . . . . . . . . . . . . . . . . . . . . . 23 (((lcm𝑦) ∈ ℤ ∧ 𝑧 ∈ ℤ) → 𝑧 ∥ ((lcm𝑦) lcm 𝑧))
5552, 54syl 17 . . . . . . . . . . . . . . . . . . . . . 22 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → 𝑧 ∥ ((lcm𝑦) lcm 𝑧))
56193adant1 1077 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → (lcm𝑦) ∈ ℕ0)
5756nn0zd 11465 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → (lcm𝑦) ∈ ℤ)
58 lcmcl 15295 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((lcm𝑦) ∈ ℤ ∧ 𝑧 ∈ ℤ) → ((lcm𝑦) lcm 𝑧) ∈ ℕ0)
5957, 3, 58syl2anc 692 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → ((lcm𝑦) lcm 𝑧) ∈ ℕ0)
6059nn0zd 11465 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → ((lcm𝑦) lcm 𝑧) ∈ ℤ)
61 dvdslcm 15292 . . . . . . . . . . . . . . . . . . . . . . . 24 ((((lcm𝑦) lcm 𝑧) ∈ ℤ ∧ 𝑛 ∈ ℤ) → (((lcm𝑦) lcm 𝑧) ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛) ∧ 𝑛 ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛)))
6261simpld 475 . . . . . . . . . . . . . . . . . . . . . . 23 ((((lcm𝑦) lcm 𝑧) ∈ ℤ ∧ 𝑛 ∈ ℤ) → ((lcm𝑦) lcm 𝑧) ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛))
6360, 62sylan 488 . . . . . . . . . . . . . . . . . . . . . 22 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → ((lcm𝑦) lcm 𝑧) ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛))
6460adantr 481 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → ((lcm𝑦) lcm 𝑧) ∈ ℤ)
65 lcmcl 15295 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((((lcm𝑦) lcm 𝑧) ∈ ℤ ∧ 𝑛 ∈ ℤ) → (((lcm𝑦) lcm 𝑧) lcm 𝑛) ∈ ℕ0)
6660, 65sylan 488 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → (((lcm𝑦) lcm 𝑧) lcm 𝑛) ∈ ℕ0)
6766nn0zd 11465 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → (((lcm𝑦) lcm 𝑧) lcm 𝑛) ∈ ℤ)
68 dvdstr 14999 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑧 ∈ ℤ ∧ ((lcm𝑦) lcm 𝑧) ∈ ℤ ∧ (((lcm𝑦) lcm 𝑧) lcm 𝑛) ∈ ℤ) → ((𝑧 ∥ ((lcm𝑦) lcm 𝑧) ∧ ((lcm𝑦) lcm 𝑧) ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛)) → 𝑧 ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛)))
694, 64, 67, 68syl3anc 1324 . . . . . . . . . . . . . . . . . . . . . 22 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → ((𝑧 ∥ ((lcm𝑦) lcm 𝑧) ∧ ((lcm𝑦) lcm 𝑧) ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛)) → 𝑧 ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛)))
7055, 63, 69mp2and 714 . . . . . . . . . . . . . . . . . . . . 21 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → 𝑧 ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛))
71 breq1 4647 . . . . . . . . . . . . . . . . . . . . 21 (𝑖 = 𝑧 → (𝑖 ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛) ↔ 𝑧 ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛)))
7270, 71syl5ibr 236 . . . . . . . . . . . . . . . . . . . 20 (𝑖 = 𝑧 → (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → 𝑖 ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛)))
7350, 72syl 17 . . . . . . . . . . . . . . . . . . 19 (𝑖 ∈ {𝑧} → (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → 𝑖 ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛)))
7449, 73jaoi 394 . . . . . . . . . . . . . . . . . 18 ((𝑖𝑦𝑖 ∈ {𝑧}) → (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → 𝑖 ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛)))
7574imp 445 . . . . . . . . . . . . . . . . 17 (((𝑖𝑦𝑖 ∈ {𝑧}) ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → 𝑖 ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛))
76 oveq1 6642 . . . . . . . . . . . . . . . . . 18 ((lcm‘(𝑦 ∪ {𝑧})) = ((lcm𝑦) lcm 𝑧) → ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) = (((lcm𝑦) lcm 𝑧) lcm 𝑛))
7776breq2d 4656 . . . . . . . . . . . . . . . . 17 ((lcm‘(𝑦 ∪ {𝑧})) = ((lcm𝑦) lcm 𝑧) → (𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ↔ 𝑖 ∥ (((lcm𝑦) lcm 𝑧) lcm 𝑛)))
7875, 77syl5ibrcom 237 . . . . . . . . . . . . . . . 16 (((𝑖𝑦𝑖 ∈ {𝑧}) ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → ((lcm‘(𝑦 ∪ {𝑧})) = ((lcm𝑦) lcm 𝑧) → 𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛)))
7912, 78syld 47 . . . . . . . . . . . . . . 15 (((𝑖𝑦𝑖 ∈ {𝑧}) ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ)) → (∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛) → 𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛)))
8079ex 450 . . . . . . . . . . . . . 14 ((𝑖𝑦𝑖 ∈ {𝑧}) → (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → (∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛) → 𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛))))
812, 80sylbi 207 . . . . . . . . . . . . 13 (𝑖 ∈ (𝑦 ∪ {𝑧}) → (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → (∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛) → 𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛))))
82 elsni 4185 . . . . . . . . . . . . . 14 (𝑖 ∈ {𝑛} → 𝑖 = 𝑛)
83 simp2 1060 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → 𝑦 ⊆ ℤ)
84 snssi 4330 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑧 ∈ ℤ → {𝑧} ⊆ ℤ)
85843ad2ant1 1080 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → {𝑧} ⊆ ℤ)
8683, 85unssd 3781 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → (𝑦 ∪ {𝑧}) ⊆ ℤ)
87 simp3 1061 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → 𝑦 ∈ Fin)
88 snfi 8023 . . . . . . . . . . . . . . . . . . . . . . 23 {𝑧} ∈ Fin
89 unfi 8212 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑦 ∈ Fin ∧ {𝑧} ∈ Fin) → (𝑦 ∪ {𝑧}) ∈ Fin)
9087, 88, 89sylancl 693 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → (𝑦 ∪ {𝑧}) ∈ Fin)
91 lcmfcl 15322 . . . . . . . . . . . . . . . . . . . . . 22 (((𝑦 ∪ {𝑧}) ⊆ ℤ ∧ (𝑦 ∪ {𝑧}) ∈ Fin) → (lcm‘(𝑦 ∪ {𝑧})) ∈ ℕ0)
9286, 90, 91syl2anc 692 . . . . . . . . . . . . . . . . . . . . 21 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → (lcm‘(𝑦 ∪ {𝑧})) ∈ ℕ0)
9392nn0zd 11465 . . . . . . . . . . . . . . . . . . . 20 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → (lcm‘(𝑦 ∪ {𝑧})) ∈ ℤ)
9493anim1i 591 . . . . . . . . . . . . . . . . . . 19 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → ((lcm‘(𝑦 ∪ {𝑧})) ∈ ℤ ∧ 𝑛 ∈ ℤ))
9594adantr 481 . . . . . . . . . . . . . . . . . 18 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛)) → ((lcm‘(𝑦 ∪ {𝑧})) ∈ ℤ ∧ 𝑛 ∈ ℤ))
96 dvdslcm 15292 . . . . . . . . . . . . . . . . . 18 (((lcm‘(𝑦 ∪ {𝑧})) ∈ ℤ ∧ 𝑛 ∈ ℤ) → ((lcm‘(𝑦 ∪ {𝑧})) ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ∧ 𝑛 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛)))
9795, 96syl 17 . . . . . . . . . . . . . . . . 17 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛)) → ((lcm‘(𝑦 ∪ {𝑧})) ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ∧ 𝑛 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛)))
9897simprd 479 . . . . . . . . . . . . . . . 16 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛)) → 𝑛 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛))
99 breq1 4647 . . . . . . . . . . . . . . . 16 (𝑖 = 𝑛 → (𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ↔ 𝑛 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛)))
10098, 99syl5ibr 236 . . . . . . . . . . . . . . 15 (𝑖 = 𝑛 → ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛)) → 𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛)))
101100expd 452 . . . . . . . . . . . . . 14 (𝑖 = 𝑛 → (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → (∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛) → 𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛))))
10282, 101syl 17 . . . . . . . . . . . . 13 (𝑖 ∈ {𝑛} → (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → (∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛) → 𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛))))
10381, 102jaoi 394 . . . . . . . . . . . 12 ((𝑖 ∈ (𝑦 ∪ {𝑧}) ∨ 𝑖 ∈ {𝑛}) → (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → (∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛) → 𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛))))
1041, 103sylbi 207 . . . . . . . . . . 11 (𝑖 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) → (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → (∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛) → 𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛))))
105104com13 88 . . . . . . . . . 10 (∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛) → (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → (𝑖 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) → 𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛))))
106105expd 452 . . . . . . . . 9 (∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛) → ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → (𝑛 ∈ ℤ → (𝑖 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) → 𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛)))))
107106adantl 482 . . . . . . . 8 ((∀𝑘 ∈ ℤ (∀𝑚𝑦 𝑚𝑘 → (lcm𝑦) ∥ 𝑘) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛)) → ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → (𝑛 ∈ ℤ → (𝑖 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) → 𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛)))))
108107impcom 446 . . . . . . 7 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ (∀𝑘 ∈ ℤ (∀𝑚𝑦 𝑚𝑘 → (lcm𝑦) ∥ 𝑘) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛))) → (𝑛 ∈ ℤ → (𝑖 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) → 𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛))))
109108impcom 446 . . . . . 6 ((𝑛 ∈ ℤ ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ (∀𝑘 ∈ ℤ (∀𝑚𝑦 𝑚𝑘 → (lcm𝑦) ∥ 𝑘) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛)))) → (𝑖 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) → 𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛)))
110109adantl 482 . . . . 5 (((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) ∧ (𝑛 ∈ ℤ ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ (∀𝑘 ∈ ℤ (∀𝑚𝑦 𝑚𝑘 → (lcm𝑦) ∥ 𝑘) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛))))) → (𝑖 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) → 𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛)))
111110ralrimiv 2962 . . . 4 (((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) ∧ (𝑛 ∈ ℤ ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ (∀𝑘 ∈ ℤ (∀𝑚𝑦 𝑚𝑘 → (lcm𝑦) ∥ 𝑘) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛))))) → ∀𝑖 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛})𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛))
112 lcmfunsnlem2lem1 15332 . . . 4 (((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) ∧ (𝑛 ∈ ℤ ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ (∀𝑘 ∈ ℤ (∀𝑚𝑦 𝑚𝑘 → (lcm𝑦) ∥ 𝑘) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛))))) → ∀𝑘 ∈ ℕ (∀𝑖 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛})𝑖𝑘 → ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ≤ 𝑘))
113111, 112jca 554 . . 3 (((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) ∧ (𝑛 ∈ ℤ ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ (∀𝑘 ∈ ℤ (∀𝑚𝑦 𝑚𝑘 → (lcm𝑦) ∥ 𝑘) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛))))) → (∀𝑖 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛})𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ∧ ∀𝑘 ∈ ℕ (∀𝑖 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛})𝑖𝑘 → ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ≤ 𝑘)))
11494adantr 481 . . . . . . . . . . 11 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0)) → ((lcm‘(𝑦 ∪ {𝑧})) ∈ ℤ ∧ 𝑛 ∈ ℤ))
11586adantr 481 . . . . . . . . . . . . . . . 16 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → (𝑦 ∪ {𝑧}) ⊆ ℤ)
116115adantr 481 . . . . . . . . . . . . . . 15 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0)) → (𝑦 ∪ {𝑧}) ⊆ ℤ)
11790adantr 481 . . . . . . . . . . . . . . . 16 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → (𝑦 ∪ {𝑧}) ∈ Fin)
118117adantr 481 . . . . . . . . . . . . . . 15 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0)) → (𝑦 ∪ {𝑧}) ∈ Fin)
119 df-nel 2895 . . . . . . . . . . . . . . . . . . . . 21 (0 ∉ 𝑦 ↔ ¬ 0 ∈ 𝑦)
120119biimpi 206 . . . . . . . . . . . . . . . . . . . 20 (0 ∉ 𝑦 → ¬ 0 ∈ 𝑦)
1211203ad2ant1 1080 . . . . . . . . . . . . . . . . . . 19 ((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) → ¬ 0 ∈ 𝑦)
122 elsni 4185 . . . . . . . . . . . . . . . . . . . . . 22 (0 ∈ {𝑧} → 0 = 𝑧)
123122eqcomd 2626 . . . . . . . . . . . . . . . . . . . . 21 (0 ∈ {𝑧} → 𝑧 = 0)
124123necon3ai 2816 . . . . . . . . . . . . . . . . . . . 20 (𝑧 ≠ 0 → ¬ 0 ∈ {𝑧})
1251243ad2ant2 1081 . . . . . . . . . . . . . . . . . . 19 ((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) → ¬ 0 ∈ {𝑧})
126 ioran 511 . . . . . . . . . . . . . . . . . . 19 (¬ (0 ∈ 𝑦 ∨ 0 ∈ {𝑧}) ↔ (¬ 0 ∈ 𝑦 ∧ ¬ 0 ∈ {𝑧}))
127121, 125, 126sylanbrc 697 . . . . . . . . . . . . . . . . . 18 ((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) → ¬ (0 ∈ 𝑦 ∨ 0 ∈ {𝑧}))
128 elun 3745 . . . . . . . . . . . . . . . . . 18 (0 ∈ (𝑦 ∪ {𝑧}) ↔ (0 ∈ 𝑦 ∨ 0 ∈ {𝑧}))
129127, 128sylnibr 319 . . . . . . . . . . . . . . . . 17 ((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) → ¬ 0 ∈ (𝑦 ∪ {𝑧}))
130 df-nel 2895 . . . . . . . . . . . . . . . . 17 (0 ∉ (𝑦 ∪ {𝑧}) ↔ ¬ 0 ∈ (𝑦 ∪ {𝑧}))
131129, 130sylibr 224 . . . . . . . . . . . . . . . 16 ((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) → 0 ∉ (𝑦 ∪ {𝑧}))
132131adantl 482 . . . . . . . . . . . . . . 15 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0)) → 0 ∉ (𝑦 ∪ {𝑧}))
133 lcmfn0cl 15320 . . . . . . . . . . . . . . 15 (((𝑦 ∪ {𝑧}) ⊆ ℤ ∧ (𝑦 ∪ {𝑧}) ∈ Fin ∧ 0 ∉ (𝑦 ∪ {𝑧})) → (lcm‘(𝑦 ∪ {𝑧})) ∈ ℕ)
134116, 118, 132, 133syl3anc 1324 . . . . . . . . . . . . . 14 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0)) → (lcm‘(𝑦 ∪ {𝑧})) ∈ ℕ)
135134nnne0d 11050 . . . . . . . . . . . . 13 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0)) → (lcm‘(𝑦 ∪ {𝑧})) ≠ 0)
136135neneqd 2796 . . . . . . . . . . . 12 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0)) → ¬ (lcm‘(𝑦 ∪ {𝑧})) = 0)
137 df-ne 2792 . . . . . . . . . . . . . . 15 (𝑛 ≠ 0 ↔ ¬ 𝑛 = 0)
138137biimpi 206 . . . . . . . . . . . . . 14 (𝑛 ≠ 0 → ¬ 𝑛 = 0)
1391383ad2ant3 1082 . . . . . . . . . . . . 13 ((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) → ¬ 𝑛 = 0)
140139adantl 482 . . . . . . . . . . . 12 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0)) → ¬ 𝑛 = 0)
141 ioran 511 . . . . . . . . . . . 12 (¬ ((lcm‘(𝑦 ∪ {𝑧})) = 0 ∨ 𝑛 = 0) ↔ (¬ (lcm‘(𝑦 ∪ {𝑧})) = 0 ∧ ¬ 𝑛 = 0))
142136, 140, 141sylanbrc 697 . . . . . . . . . . 11 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0)) → ¬ ((lcm‘(𝑦 ∪ {𝑧})) = 0 ∨ 𝑛 = 0))
143 lcmn0cl 15291 . . . . . . . . . . 11 ((((lcm‘(𝑦 ∪ {𝑧})) ∈ ℤ ∧ 𝑛 ∈ ℤ) ∧ ¬ ((lcm‘(𝑦 ∪ {𝑧})) = 0 ∨ 𝑛 = 0)) → ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ∈ ℕ)
144114, 142, 143syl2anc 692 . . . . . . . . . 10 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0)) → ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ∈ ℕ)
145 snssi 4330 . . . . . . . . . . . . . 14 (𝑛 ∈ ℤ → {𝑛} ⊆ ℤ)
146145adantl 482 . . . . . . . . . . . . 13 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → {𝑛} ⊆ ℤ)
147115, 146unssd 3781 . . . . . . . . . . . 12 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ⊆ ℤ)
148147adantr 481 . . . . . . . . . . 11 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0)) → ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ⊆ ℤ)
14988, 89mpan2 706 . . . . . . . . . . . . . . 15 (𝑦 ∈ Fin → (𝑦 ∪ {𝑧}) ∈ Fin)
150 snfi 8023 . . . . . . . . . . . . . . 15 {𝑛} ∈ Fin
151 unfi 8212 . . . . . . . . . . . . . . 15 (((𝑦 ∪ {𝑧}) ∈ Fin ∧ {𝑛} ∈ Fin) → ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ∈ Fin)
152149, 150, 151sylancl 693 . . . . . . . . . . . . . 14 (𝑦 ∈ Fin → ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ∈ Fin)
1531523ad2ant3 1082 . . . . . . . . . . . . 13 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ∈ Fin)
154153adantr 481 . . . . . . . . . . . 12 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ∈ Fin)
155154adantr 481 . . . . . . . . . . 11 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0)) → ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ∈ Fin)
156 elun 3745 . . . . . . . . . . . . . . . 16 (0 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ↔ (0 ∈ (𝑦 ∪ {𝑧}) ∨ 0 ∈ {𝑛}))
157 nnel 2903 . . . . . . . . . . . . . . . . . . . . 21 (¬ 0 ∉ 𝑦 ↔ 0 ∈ 𝑦)
158157biimpri 218 . . . . . . . . . . . . . . . . . . . 20 (0 ∈ 𝑦 → ¬ 0 ∉ 𝑦)
1591583mix1d 1234 . . . . . . . . . . . . . . . . . . 19 (0 ∈ 𝑦 → (¬ 0 ∉ 𝑦 ∨ ¬ 𝑧 ≠ 0 ∨ ¬ 𝑛 ≠ 0))
160 nne 2795 . . . . . . . . . . . . . . . . . . . . 21 𝑧 ≠ 0 ↔ 𝑧 = 0)
161123, 160sylibr 224 . . . . . . . . . . . . . . . . . . . 20 (0 ∈ {𝑧} → ¬ 𝑧 ≠ 0)
1621613mix2d 1235 . . . . . . . . . . . . . . . . . . 19 (0 ∈ {𝑧} → (¬ 0 ∉ 𝑦 ∨ ¬ 𝑧 ≠ 0 ∨ ¬ 𝑛 ≠ 0))
163159, 162jaoi 394 . . . . . . . . . . . . . . . . . 18 ((0 ∈ 𝑦 ∨ 0 ∈ {𝑧}) → (¬ 0 ∉ 𝑦 ∨ ¬ 𝑧 ≠ 0 ∨ ¬ 𝑛 ≠ 0))
164128, 163sylbi 207 . . . . . . . . . . . . . . . . 17 (0 ∈ (𝑦 ∪ {𝑧}) → (¬ 0 ∉ 𝑦 ∨ ¬ 𝑧 ≠ 0 ∨ ¬ 𝑛 ≠ 0))
165 elsni 4185 . . . . . . . . . . . . . . . . . . . 20 (0 ∈ {𝑛} → 0 = 𝑛)
166165eqcomd 2626 . . . . . . . . . . . . . . . . . . 19 (0 ∈ {𝑛} → 𝑛 = 0)
167 nne 2795 . . . . . . . . . . . . . . . . . . 19 𝑛 ≠ 0 ↔ 𝑛 = 0)
168166, 167sylibr 224 . . . . . . . . . . . . . . . . . 18 (0 ∈ {𝑛} → ¬ 𝑛 ≠ 0)
1691683mix3d 1236 . . . . . . . . . . . . . . . . 17 (0 ∈ {𝑛} → (¬ 0 ∉ 𝑦 ∨ ¬ 𝑧 ≠ 0 ∨ ¬ 𝑛 ≠ 0))
170164, 169jaoi 394 . . . . . . . . . . . . . . . 16 ((0 ∈ (𝑦 ∪ {𝑧}) ∨ 0 ∈ {𝑛}) → (¬ 0 ∉ 𝑦 ∨ ¬ 𝑧 ≠ 0 ∨ ¬ 𝑛 ≠ 0))
171156, 170sylbi 207 . . . . . . . . . . . . . . 15 (0 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) → (¬ 0 ∉ 𝑦 ∨ ¬ 𝑧 ≠ 0 ∨ ¬ 𝑛 ≠ 0))
172 3ianor 1053 . . . . . . . . . . . . . . 15 (¬ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) ↔ (¬ 0 ∉ 𝑦 ∨ ¬ 𝑧 ≠ 0 ∨ ¬ 𝑛 ≠ 0))
173171, 172sylibr 224 . . . . . . . . . . . . . 14 (0 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) → ¬ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0))
174173con2i 134 . . . . . . . . . . . . 13 ((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) → ¬ 0 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛}))
175 df-nel 2895 . . . . . . . . . . . . 13 (0 ∉ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ↔ ¬ 0 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛}))
176174, 175sylibr 224 . . . . . . . . . . . 12 ((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) → 0 ∉ ((𝑦 ∪ {𝑧}) ∪ {𝑛}))
177176adantl 482 . . . . . . . . . . 11 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0)) → 0 ∉ ((𝑦 ∪ {𝑧}) ∪ {𝑛}))
178148, 155, 1773jca 1240 . . . . . . . . . 10 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0)) → (((𝑦 ∪ {𝑧}) ∪ {𝑛}) ⊆ ℤ ∧ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ∈ Fin ∧ 0 ∉ ((𝑦 ∪ {𝑧}) ∪ {𝑛})))
179144, 178jca 554 . . . . . . . . 9 ((((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) ∧ (0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0)) → (((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ∈ ℕ ∧ (((𝑦 ∪ {𝑧}) ∪ {𝑛}) ⊆ ℤ ∧ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ∈ Fin ∧ 0 ∉ ((𝑦 ∪ {𝑧}) ∪ {𝑛}))))
180179ex 450 . . . . . . . 8 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ 𝑛 ∈ ℤ) → ((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) → (((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ∈ ℕ ∧ (((𝑦 ∪ {𝑧}) ∪ {𝑛}) ⊆ ℤ ∧ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ∈ Fin ∧ 0 ∉ ((𝑦 ∪ {𝑧}) ∪ {𝑛})))))
181180ex 450 . . . . . . 7 ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) → (𝑛 ∈ ℤ → ((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) → (((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ∈ ℕ ∧ (((𝑦 ∪ {𝑧}) ∪ {𝑛}) ⊆ ℤ ∧ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ∈ Fin ∧ 0 ∉ ((𝑦 ∪ {𝑧}) ∪ {𝑛}))))))
182181adantr 481 . . . . . 6 (((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ (∀𝑘 ∈ ℤ (∀𝑚𝑦 𝑚𝑘 → (lcm𝑦) ∥ 𝑘) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛))) → (𝑛 ∈ ℤ → ((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) → (((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ∈ ℕ ∧ (((𝑦 ∪ {𝑧}) ∪ {𝑛}) ⊆ ℤ ∧ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ∈ Fin ∧ 0 ∉ ((𝑦 ∪ {𝑧}) ∪ {𝑛}))))))
183182impcom 446 . . . . 5 ((𝑛 ∈ ℤ ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ (∀𝑘 ∈ ℤ (∀𝑚𝑦 𝑚𝑘 → (lcm𝑦) ∥ 𝑘) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛)))) → ((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) → (((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ∈ ℕ ∧ (((𝑦 ∪ {𝑧}) ∪ {𝑛}) ⊆ ℤ ∧ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ∈ Fin ∧ 0 ∉ ((𝑦 ∪ {𝑧}) ∪ {𝑛})))))
184183impcom 446 . . . 4 (((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) ∧ (𝑛 ∈ ℤ ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ (∀𝑘 ∈ ℤ (∀𝑚𝑦 𝑚𝑘 → (lcm𝑦) ∥ 𝑘) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛))))) → (((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ∈ ℕ ∧ (((𝑦 ∪ {𝑧}) ∪ {𝑛}) ⊆ ℤ ∧ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ∈ Fin ∧ 0 ∉ ((𝑦 ∪ {𝑧}) ∪ {𝑛}))))
185 lcmf 15327 . . . 4 ((((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ∈ ℕ ∧ (((𝑦 ∪ {𝑧}) ∪ {𝑛}) ⊆ ℤ ∧ ((𝑦 ∪ {𝑧}) ∪ {𝑛}) ∈ Fin ∧ 0 ∉ ((𝑦 ∪ {𝑧}) ∪ {𝑛}))) → (((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) = (lcm‘((𝑦 ∪ {𝑧}) ∪ {𝑛})) ↔ (∀𝑖 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛})𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ∧ ∀𝑘 ∈ ℕ (∀𝑖 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛})𝑖𝑘 → ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ≤ 𝑘))))
186184, 185syl 17 . . 3 (((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) ∧ (𝑛 ∈ ℤ ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ (∀𝑘 ∈ ℤ (∀𝑚𝑦 𝑚𝑘 → (lcm𝑦) ∥ 𝑘) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛))))) → (((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) = (lcm‘((𝑦 ∪ {𝑧}) ∪ {𝑛})) ↔ (∀𝑖 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛})𝑖 ∥ ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ∧ ∀𝑘 ∈ ℕ (∀𝑖 ∈ ((𝑦 ∪ {𝑧}) ∪ {𝑛})𝑖𝑘 → ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) ≤ 𝑘))))
187113, 186mpbird 247 . 2 (((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) ∧ (𝑛 ∈ ℤ ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ (∀𝑘 ∈ ℤ (∀𝑚𝑦 𝑚𝑘 → (lcm𝑦) ∥ 𝑘) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛))))) → ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛) = (lcm‘((𝑦 ∪ {𝑧}) ∪ {𝑛})))
188187eqcomd 2626 1 (((0 ∉ 𝑦𝑧 ≠ 0 ∧ 𝑛 ≠ 0) ∧ (𝑛 ∈ ℤ ∧ ((𝑧 ∈ ℤ ∧ 𝑦 ⊆ ℤ ∧ 𝑦 ∈ Fin) ∧ (∀𝑘 ∈ ℤ (∀𝑚𝑦 𝑚𝑘 → (lcm𝑦) ∥ 𝑘) ∧ ∀𝑛 ∈ ℤ (lcm‘(𝑦 ∪ {𝑛})) = ((lcm𝑦) lcm 𝑛))))) → (lcm‘((𝑦 ∪ {𝑧}) ∪ {𝑛})) = ((lcm‘(𝑦 ∪ {𝑧})) lcm 𝑛))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 196  wo 383  wa 384  w3o 1035  w3a 1036   = wceq 1481  wcel 1988  wne 2791  wnel 2894  wral 2909  cun 3565  wss 3567  {csn 4168   class class class wbr 4644  cfv 5876  (class class class)co 6635  Fincfn 7940  0cc0 9921  cle 10060  cn 11005  0cn0 11277  cz 11362  cdvds 14964   lcm clcm 15282  lcmclcmf 15283
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1720  ax-4 1735  ax-5 1837  ax-6 1886  ax-7 1933  ax-8 1990  ax-9 1997  ax-10 2017  ax-11 2032  ax-12 2045  ax-13 2244  ax-ext 2600  ax-rep 4762  ax-sep 4772  ax-nul 4780  ax-pow 4834  ax-pr 4897  ax-un 6934  ax-inf2 8523  ax-cnex 9977  ax-resscn 9978  ax-1cn 9979  ax-icn 9980  ax-addcl 9981  ax-addrcl 9982  ax-mulcl 9983  ax-mulrcl 9984  ax-mulcom 9985  ax-addass 9986  ax-mulass 9987  ax-distr 9988  ax-i2m1 9989  ax-1ne0 9990  ax-1rid 9991  ax-rnegex 9992  ax-rrecex 9993  ax-cnre 9994  ax-pre-lttri 9995  ax-pre-lttrn 9996  ax-pre-ltadd 9997  ax-pre-mulgt0 9998  ax-pre-sup 9999
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-tru 1484  df-fal 1487  df-ex 1703  df-nf 1708  df-sb 1879  df-eu 2472  df-mo 2473  df-clab 2607  df-cleq 2613  df-clel 2616  df-nfc 2751  df-ne 2792  df-nel 2895  df-ral 2914  df-rex 2915  df-reu 2916  df-rmo 2917  df-rab 2918  df-v 3197  df-sbc 3430  df-csb 3527  df-dif 3570  df-un 3572  df-in 3574  df-ss 3581  df-pss 3583  df-nul 3908  df-if 4078  df-pw 4151  df-sn 4169  df-pr 4171  df-tp 4173  df-op 4175  df-uni 4428  df-int 4467  df-iun 4513  df-br 4645  df-opab 4704  df-mpt 4721  df-tr 4744  df-id 5014  df-eprel 5019  df-po 5025  df-so 5026  df-fr 5063  df-se 5064  df-we 5065  df-xp 5110  df-rel 5111  df-cnv 5112  df-co 5113  df-dm 5114  df-rn 5115  df-res 5116  df-ima 5117  df-pred 5668  df-ord 5714  df-on 5715  df-lim 5716  df-suc 5717  df-iota 5839  df-fun 5878  df-fn 5879  df-f 5880  df-f1 5881  df-fo 5882  df-f1o 5883  df-fv 5884  df-isom 5885  df-riota 6596  df-ov 6638  df-oprab 6639  df-mpt2 6640  df-om 7051  df-1st 7153  df-2nd 7154  df-wrecs 7392  df-recs 7453  df-rdg 7491  df-1o 7545  df-oadd 7549  df-er 7727  df-en 7941  df-dom 7942  df-sdom 7943  df-fin 7944  df-sup 8333  df-inf 8334  df-oi 8400  df-card 8750  df-pnf 10061  df-mnf 10062  df-xr 10063  df-ltxr 10064  df-le 10065  df-sub 10253  df-neg 10254  df-div 10670  df-nn 11006  df-2 11064  df-3 11065  df-n0 11278  df-z 11363  df-uz 11673  df-rp 11818  df-fz 12312  df-fzo 12450  df-fl 12576  df-mod 12652  df-seq 12785  df-exp 12844  df-hash 13101  df-cj 13820  df-re 13821  df-im 13822  df-sqrt 13956  df-abs 13957  df-clim 14200  df-prod 14617  df-dvds 14965  df-gcd 15198  df-lcm 15284  df-lcmf 15285
This theorem is referenced by:  lcmfunsnlem2  15334
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