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Theorem genpass 9869
 Description: Associativity of an operation on reals. (Contributed by NM, 18-Mar-1996.) (Revised by Mario Carneiro, 12-Jun-2013.) (New usage is discouraged.)
Hypotheses
Ref Expression
genp.1 𝐹 = (𝑤P, 𝑣P ↦ {𝑥 ∣ ∃𝑦𝑤𝑧𝑣 𝑥 = (𝑦𝐺𝑧)})
genp.2 ((𝑦Q𝑧Q) → (𝑦𝐺𝑧) ∈ Q)
genpass.4 dom 𝐹 = (P × P)
genpass.5 ((𝑓P𝑔P) → (𝑓𝐹𝑔) ∈ P)
genpass.6 ((𝑓𝐺𝑔)𝐺) = (𝑓𝐺(𝑔𝐺))
Assertion
Ref Expression
genpass ((𝐴𝐹𝐵)𝐹𝐶) = (𝐴𝐹(𝐵𝐹𝐶))
Distinct variable groups:   𝑥,𝑦,𝑧,𝑓,𝑔,,𝐴   𝑥,𝐵,𝑦,𝑧,𝑓,𝑔,   𝑥,𝑤,𝑣,𝐺,𝑦,𝑧,𝑓,𝑔,   𝑓,𝐹,𝑔   𝐶,𝑓,𝑔,,𝑥,𝑦,𝑧   𝑥,𝐹,𝑦,𝑧,
Allowed substitution hints:   𝐴(𝑤,𝑣)   𝐵(𝑤,𝑣)   𝐶(𝑤,𝑣)   𝐹(𝑤,𝑣)

Proof of Theorem genpass
Dummy variable 𝑡 is distinct from all other variables.
StepHypRef Expression
1 genp.1 . . . . . . . . . 10 𝐹 = (𝑤P, 𝑣P ↦ {𝑥 ∣ ∃𝑦𝑤𝑧𝑣 𝑥 = (𝑦𝐺𝑧)})
2 genp.2 . . . . . . . . . 10 ((𝑦Q𝑧Q) → (𝑦𝐺𝑧) ∈ Q)
31, 2genpelv 9860 . . . . . . . . 9 ((𝐵P𝐶P) → (𝑡 ∈ (𝐵𝐹𝐶) ↔ ∃𝑔𝐵𝐶 𝑡 = (𝑔𝐺)))
433adant1 1099 . . . . . . . 8 ((𝐴P𝐵P𝐶P) → (𝑡 ∈ (𝐵𝐹𝐶) ↔ ∃𝑔𝐵𝐶 𝑡 = (𝑔𝐺)))
54anbi1d 741 . . . . . . 7 ((𝐴P𝐵P𝐶P) → ((𝑡 ∈ (𝐵𝐹𝐶) ∧ 𝑥 = (𝑓𝐺𝑡)) ↔ (∃𝑔𝐵𝐶 𝑡 = (𝑔𝐺) ∧ 𝑥 = (𝑓𝐺𝑡))))
65exbidv 1890 . . . . . 6 ((𝐴P𝐵P𝐶P) → (∃𝑡(𝑡 ∈ (𝐵𝐹𝐶) ∧ 𝑥 = (𝑓𝐺𝑡)) ↔ ∃𝑡(∃𝑔𝐵𝐶 𝑡 = (𝑔𝐺) ∧ 𝑥 = (𝑓𝐺𝑡))))
7 df-rex 2947 . . . . . 6 (∃𝑡 ∈ (𝐵𝐹𝐶)𝑥 = (𝑓𝐺𝑡) ↔ ∃𝑡(𝑡 ∈ (𝐵𝐹𝐶) ∧ 𝑥 = (𝑓𝐺𝑡)))
8 ovex 6718 . . . . . . . . . . . . 13 (𝑔𝐺) ∈ V
98isseti 3240 . . . . . . . . . . . 12 𝑡 𝑡 = (𝑔𝐺)
109biantrur 526 . . . . . . . . . . 11 (𝑥 = ((𝑓𝐺𝑔)𝐺) ↔ (∃𝑡 𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)))
11 19.41v 1917 . . . . . . . . . . 11 (∃𝑡(𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)) ↔ (∃𝑡 𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)))
1210, 11bitr4i 267 . . . . . . . . . 10 (𝑥 = ((𝑓𝐺𝑔)𝐺) ↔ ∃𝑡(𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)))
1312rexbii 3070 . . . . . . . . 9 (∃𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺) ↔ ∃𝐶𝑡(𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)))
14 rexcom4 3256 . . . . . . . . 9 (∃𝐶𝑡(𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)) ↔ ∃𝑡𝐶 (𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)))
1513, 14bitri 264 . . . . . . . 8 (∃𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺) ↔ ∃𝑡𝐶 (𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)))
1615rexbii 3070 . . . . . . 7 (∃𝑔𝐵𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺) ↔ ∃𝑔𝐵𝑡𝐶 (𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)))
17 rexcom4 3256 . . . . . . 7 (∃𝑔𝐵𝑡𝐶 (𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)) ↔ ∃𝑡𝑔𝐵𝐶 (𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)))
18 oveq2 6698 . . . . . . . . . . . . . . 15 (𝑡 = (𝑔𝐺) → (𝑓𝐺𝑡) = (𝑓𝐺(𝑔𝐺)))
19 genpass.6 . . . . . . . . . . . . . . 15 ((𝑓𝐺𝑔)𝐺) = (𝑓𝐺(𝑔𝐺))
2018, 19syl6eqr 2703 . . . . . . . . . . . . . 14 (𝑡 = (𝑔𝐺) → (𝑓𝐺𝑡) = ((𝑓𝐺𝑔)𝐺))
2120eqeq2d 2661 . . . . . . . . . . . . 13 (𝑡 = (𝑔𝐺) → (𝑥 = (𝑓𝐺𝑡) ↔ 𝑥 = ((𝑓𝐺𝑔)𝐺)))
2221pm5.32i 670 . . . . . . . . . . . 12 ((𝑡 = (𝑔𝐺) ∧ 𝑥 = (𝑓𝐺𝑡)) ↔ (𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)))
2322rexbii 3070 . . . . . . . . . . 11 (∃𝐶 (𝑡 = (𝑔𝐺) ∧ 𝑥 = (𝑓𝐺𝑡)) ↔ ∃𝐶 (𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)))
24 r19.41v 3118 . . . . . . . . . . 11 (∃𝐶 (𝑡 = (𝑔𝐺) ∧ 𝑥 = (𝑓𝐺𝑡)) ↔ (∃𝐶 𝑡 = (𝑔𝐺) ∧ 𝑥 = (𝑓𝐺𝑡)))
2523, 24bitr3i 266 . . . . . . . . . 10 (∃𝐶 (𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)) ↔ (∃𝐶 𝑡 = (𝑔𝐺) ∧ 𝑥 = (𝑓𝐺𝑡)))
2625rexbii 3070 . . . . . . . . 9 (∃𝑔𝐵𝐶 (𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)) ↔ ∃𝑔𝐵 (∃𝐶 𝑡 = (𝑔𝐺) ∧ 𝑥 = (𝑓𝐺𝑡)))
27 r19.41v 3118 . . . . . . . . 9 (∃𝑔𝐵 (∃𝐶 𝑡 = (𝑔𝐺) ∧ 𝑥 = (𝑓𝐺𝑡)) ↔ (∃𝑔𝐵𝐶 𝑡 = (𝑔𝐺) ∧ 𝑥 = (𝑓𝐺𝑡)))
2826, 27bitri 264 . . . . . . . 8 (∃𝑔𝐵𝐶 (𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)) ↔ (∃𝑔𝐵𝐶 𝑡 = (𝑔𝐺) ∧ 𝑥 = (𝑓𝐺𝑡)))
2928exbii 1814 . . . . . . 7 (∃𝑡𝑔𝐵𝐶 (𝑡 = (𝑔𝐺) ∧ 𝑥 = ((𝑓𝐺𝑔)𝐺)) ↔ ∃𝑡(∃𝑔𝐵𝐶 𝑡 = (𝑔𝐺) ∧ 𝑥 = (𝑓𝐺𝑡)))
3016, 17, 293bitri 286 . . . . . 6 (∃𝑔𝐵𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺) ↔ ∃𝑡(∃𝑔𝐵𝐶 𝑡 = (𝑔𝐺) ∧ 𝑥 = (𝑓𝐺𝑡)))
316, 7, 303bitr4g 303 . . . . 5 ((𝐴P𝐵P𝐶P) → (∃𝑡 ∈ (𝐵𝐹𝐶)𝑥 = (𝑓𝐺𝑡) ↔ ∃𝑔𝐵𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺)))
3231rexbidv 3081 . . . 4 ((𝐴P𝐵P𝐶P) → (∃𝑓𝐴𝑡 ∈ (𝐵𝐹𝐶)𝑥 = (𝑓𝐺𝑡) ↔ ∃𝑓𝐴𝑔𝐵𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺)))
33 genpass.5 . . . . . . 7 ((𝑓P𝑔P) → (𝑓𝐹𝑔) ∈ P)
3433caovcl 6870 . . . . . 6 ((𝐵P𝐶P) → (𝐵𝐹𝐶) ∈ P)
351, 2genpelv 9860 . . . . . 6 ((𝐴P ∧ (𝐵𝐹𝐶) ∈ P) → (𝑥 ∈ (𝐴𝐹(𝐵𝐹𝐶)) ↔ ∃𝑓𝐴𝑡 ∈ (𝐵𝐹𝐶)𝑥 = (𝑓𝐺𝑡)))
3634, 35sylan2 490 . . . . 5 ((𝐴P ∧ (𝐵P𝐶P)) → (𝑥 ∈ (𝐴𝐹(𝐵𝐹𝐶)) ↔ ∃𝑓𝐴𝑡 ∈ (𝐵𝐹𝐶)𝑥 = (𝑓𝐺𝑡)))
37363impb 1279 . . . 4 ((𝐴P𝐵P𝐶P) → (𝑥 ∈ (𝐴𝐹(𝐵𝐹𝐶)) ↔ ∃𝑓𝐴𝑡 ∈ (𝐵𝐹𝐶)𝑥 = (𝑓𝐺𝑡)))
3833caovcl 6870 . . . . . 6 ((𝐴P𝐵P) → (𝐴𝐹𝐵) ∈ P)
391, 2genpelv 9860 . . . . . 6 (((𝐴𝐹𝐵) ∈ P𝐶P) → (𝑥 ∈ ((𝐴𝐹𝐵)𝐹𝐶) ↔ ∃𝑡 ∈ (𝐴𝐹𝐵)∃𝐶 𝑥 = (𝑡𝐺)))
4038, 39stoic3 1741 . . . . 5 ((𝐴P𝐵P𝐶P) → (𝑥 ∈ ((𝐴𝐹𝐵)𝐹𝐶) ↔ ∃𝑡 ∈ (𝐴𝐹𝐵)∃𝐶 𝑥 = (𝑡𝐺)))
411, 2genpelv 9860 . . . . . . . . 9 ((𝐴P𝐵P) → (𝑡 ∈ (𝐴𝐹𝐵) ↔ ∃𝑓𝐴𝑔𝐵 𝑡 = (𝑓𝐺𝑔)))
42413adant3 1101 . . . . . . . 8 ((𝐴P𝐵P𝐶P) → (𝑡 ∈ (𝐴𝐹𝐵) ↔ ∃𝑓𝐴𝑔𝐵 𝑡 = (𝑓𝐺𝑔)))
4342anbi1d 741 . . . . . . 7 ((𝐴P𝐵P𝐶P) → ((𝑡 ∈ (𝐴𝐹𝐵) ∧ ∃𝐶 𝑥 = (𝑡𝐺)) ↔ (∃𝑓𝐴𝑔𝐵 𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺))))
4443exbidv 1890 . . . . . 6 ((𝐴P𝐵P𝐶P) → (∃𝑡(𝑡 ∈ (𝐴𝐹𝐵) ∧ ∃𝐶 𝑥 = (𝑡𝐺)) ↔ ∃𝑡(∃𝑓𝐴𝑔𝐵 𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺))))
45 df-rex 2947 . . . . . 6 (∃𝑡 ∈ (𝐴𝐹𝐵)∃𝐶 𝑥 = (𝑡𝐺) ↔ ∃𝑡(𝑡 ∈ (𝐴𝐹𝐵) ∧ ∃𝐶 𝑥 = (𝑡𝐺)))
46 19.41v 1917 . . . . . . . . . . 11 (∃𝑡(𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺)) ↔ (∃𝑡 𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺)))
47 oveq1 6697 . . . . . . . . . . . . . . 15 (𝑡 = (𝑓𝐺𝑔) → (𝑡𝐺) = ((𝑓𝐺𝑔)𝐺))
4847eqeq2d 2661 . . . . . . . . . . . . . 14 (𝑡 = (𝑓𝐺𝑔) → (𝑥 = (𝑡𝐺) ↔ 𝑥 = ((𝑓𝐺𝑔)𝐺)))
4948rexbidv 3081 . . . . . . . . . . . . 13 (𝑡 = (𝑓𝐺𝑔) → (∃𝐶 𝑥 = (𝑡𝐺) ↔ ∃𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺)))
5049pm5.32i 670 . . . . . . . . . . . 12 ((𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺)) ↔ (𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺)))
5150exbii 1814 . . . . . . . . . . 11 (∃𝑡(𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺)) ↔ ∃𝑡(𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺)))
52 ovex 6718 . . . . . . . . . . . . 13 (𝑓𝐺𝑔) ∈ V
5352isseti 3240 . . . . . . . . . . . 12 𝑡 𝑡 = (𝑓𝐺𝑔)
5453biantrur 526 . . . . . . . . . . 11 (∃𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺) ↔ (∃𝑡 𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺)))
5546, 51, 543bitr4ri 293 . . . . . . . . . 10 (∃𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺) ↔ ∃𝑡(𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺)))
5655rexbii 3070 . . . . . . . . 9 (∃𝑔𝐵𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺) ↔ ∃𝑔𝐵𝑡(𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺)))
57 rexcom4 3256 . . . . . . . . 9 (∃𝑔𝐵𝑡(𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺)) ↔ ∃𝑡𝑔𝐵 (𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺)))
5856, 57bitri 264 . . . . . . . 8 (∃𝑔𝐵𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺) ↔ ∃𝑡𝑔𝐵 (𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺)))
5958rexbii 3070 . . . . . . 7 (∃𝑓𝐴𝑔𝐵𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺) ↔ ∃𝑓𝐴𝑡𝑔𝐵 (𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺)))
60 rexcom4 3256 . . . . . . 7 (∃𝑓𝐴𝑡𝑔𝐵 (𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺)) ↔ ∃𝑡𝑓𝐴𝑔𝐵 (𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺)))
61 r19.41vv 3120 . . . . . . . 8 (∃𝑓𝐴𝑔𝐵 (𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺)) ↔ (∃𝑓𝐴𝑔𝐵 𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺)))
6261exbii 1814 . . . . . . 7 (∃𝑡𝑓𝐴𝑔𝐵 (𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺)) ↔ ∃𝑡(∃𝑓𝐴𝑔𝐵 𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺)))
6359, 60, 623bitri 286 . . . . . 6 (∃𝑓𝐴𝑔𝐵𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺) ↔ ∃𝑡(∃𝑓𝐴𝑔𝐵 𝑡 = (𝑓𝐺𝑔) ∧ ∃𝐶 𝑥 = (𝑡𝐺)))
6444, 45, 633bitr4g 303 . . . . 5 ((𝐴P𝐵P𝐶P) → (∃𝑡 ∈ (𝐴𝐹𝐵)∃𝐶 𝑥 = (𝑡𝐺) ↔ ∃𝑓𝐴𝑔𝐵𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺)))
6540, 64bitrd 268 . . . 4 ((𝐴P𝐵P𝐶P) → (𝑥 ∈ ((𝐴𝐹𝐵)𝐹𝐶) ↔ ∃𝑓𝐴𝑔𝐵𝐶 𝑥 = ((𝑓𝐺𝑔)𝐺)))
6632, 37, 653bitr4rd 301 . . 3 ((𝐴P𝐵P𝐶P) → (𝑥 ∈ ((𝐴𝐹𝐵)𝐹𝐶) ↔ 𝑥 ∈ (𝐴𝐹(𝐵𝐹𝐶))))
6766eqrdv 2649 . 2 ((𝐴P𝐵P𝐶P) → ((𝐴𝐹𝐵)𝐹𝐶) = (𝐴𝐹(𝐵𝐹𝐶)))
68 genpass.4 . . 3 dom 𝐹 = (P × P)
69 0npr 9852 . . 3 ¬ ∅ ∈ P
7068, 69ndmovass 6864 . 2 (¬ (𝐴P𝐵P𝐶P) → ((𝐴𝐹𝐵)𝐹𝐶) = (𝐴𝐹(𝐵𝐹𝐶)))
7167, 70pm2.61i 176 1 ((𝐴𝐹𝐵)𝐹𝐶) = (𝐴𝐹(𝐵𝐹𝐶))
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ↔ wb 196   ∧ wa 383   ∧ w3a 1054   = wceq 1523  ∃wex 1744   ∈ wcel 2030  {cab 2637  ∃wrex 2942   × cxp 5141  dom cdm 5143  (class class class)co 6690   ↦ cmpt2 6692  Qcnq 9712  Pcnp 9719 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1762  ax-4 1777  ax-5 1879  ax-6 1945  ax-7 1981  ax-8 2032  ax-9 2039  ax-10 2059  ax-11 2074  ax-12 2087  ax-13 2282  ax-ext 2631  ax-sep 4814  ax-nul 4822  ax-pow 4873  ax-pr 4936  ax-un 6991  ax-inf2 8576 This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3or 1055  df-3an 1056  df-tru 1526  df-ex 1745  df-nf 1750  df-sb 1938  df-eu 2502  df-mo 2503  df-clab 2638  df-cleq 2644  df-clel 2647  df-nfc 2782  df-ne 2824  df-ral 2946  df-rex 2947  df-rab 2950  df-v 3233  df-sbc 3469  df-dif 3610  df-un 3612  df-in 3614  df-ss 3621  df-pss 3623  df-nul 3949  df-if 4120  df-pw 4193  df-sn 4211  df-pr 4213  df-tp 4215  df-op 4217  df-uni 4469  df-br 4686  df-opab 4746  df-tr 4786  df-id 5053  df-eprel 5058  df-po 5064  df-so 5065  df-fr 5102  df-we 5104  df-xp 5149  df-rel 5150  df-cnv 5151  df-co 5152  df-dm 5153  df-ord 5764  df-on 5765  df-lim 5766  df-suc 5767  df-iota 5889  df-fun 5928  df-fv 5934  df-ov 6693  df-oprab 6694  df-mpt2 6695  df-om 7108  df-ni 9732  df-nq 9772  df-np 9841 This theorem is referenced by:  addasspr  9882  mulasspr  9884
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