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Theorem sylow2alem2 18225
Description: Lemma for sylow2a 18226. All the orbits which are not for fixed points have size 𝐺 ∣ / ∣ 𝐺𝑥 (where 𝐺𝑥 is the stabilizer subgroup) and thus are powers of 𝑃. And since they are all nontrivial (because any orbit which is a singleton is a fixed point), they all divide 𝑃, and so does the sum of all of them. (Contributed by Mario Carneiro, 17-Jan-2015.)
Hypotheses
Ref Expression
sylow2a.x 𝑋 = (Base‘𝐺)
sylow2a.m (𝜑 ∈ (𝐺 GrpAct 𝑌))
sylow2a.p (𝜑𝑃 pGrp 𝐺)
sylow2a.f (𝜑𝑋 ∈ Fin)
sylow2a.y (𝜑𝑌 ∈ Fin)
sylow2a.z 𝑍 = {𝑢𝑌 ∣ ∀𝑋 ( 𝑢) = 𝑢}
sylow2a.r = {⟨𝑥, 𝑦⟩ ∣ ({𝑥, 𝑦} ⊆ 𝑌 ∧ ∃𝑔𝑋 (𝑔 𝑥) = 𝑦)}
Assertion
Ref Expression
sylow2alem2 (𝜑𝑃 ∥ Σ𝑧 ∈ ((𝑌 / ) ∖ 𝒫 𝑍)(♯‘𝑧))
Distinct variable groups:   𝑧,,   𝑔,,𝑢,𝑥,𝑦   𝑔,𝐺,𝑥,𝑦   𝑧,𝑃   ,𝑔,,𝑢,𝑥,𝑦   𝑔,𝑋,,𝑢,𝑥,𝑦   𝑧,𝑍   𝜑,,𝑧   𝑧,𝑔,𝑌,,𝑢,𝑥,𝑦
Allowed substitution hints:   𝜑(𝑥,𝑦,𝑢,𝑔)   𝑃(𝑥,𝑦,𝑢,𝑔,)   (𝑧)   (𝑥,𝑦,𝑢,𝑔)   𝐺(𝑧,𝑢,)   𝑋(𝑧)   𝑍(𝑥,𝑦,𝑢,𝑔,)

Proof of Theorem sylow2alem2
Dummy variables 𝑘 𝑛 𝑤 𝑣 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 sylow2a.y . . . . 5 (𝜑𝑌 ∈ Fin)
2 pwfi 8418 . . . . 5 (𝑌 ∈ Fin ↔ 𝒫 𝑌 ∈ Fin)
31, 2sylib 208 . . . 4 (𝜑 → 𝒫 𝑌 ∈ Fin)
4 sylow2a.m . . . . . 6 (𝜑 ∈ (𝐺 GrpAct 𝑌))
5 sylow2a.r . . . . . . 7 = {⟨𝑥, 𝑦⟩ ∣ ({𝑥, 𝑦} ⊆ 𝑌 ∧ ∃𝑔𝑋 (𝑔 𝑥) = 𝑦)}
6 sylow2a.x . . . . . . 7 𝑋 = (Base‘𝐺)
75, 6gaorber 17933 . . . . . 6 ( ∈ (𝐺 GrpAct 𝑌) → Er 𝑌)
84, 7syl 17 . . . . 5 (𝜑 Er 𝑌)
98qsss 7967 . . . 4 (𝜑 → (𝑌 / ) ⊆ 𝒫 𝑌)
10 ssfi 8337 . . . 4 ((𝒫 𝑌 ∈ Fin ∧ (𝑌 / ) ⊆ 𝒫 𝑌) → (𝑌 / ) ∈ Fin)
113, 9, 10syl2anc 696 . . 3 (𝜑 → (𝑌 / ) ∈ Fin)
12 diffi 8349 . . 3 ((𝑌 / ) ∈ Fin → ((𝑌 / ) ∖ 𝒫 𝑍) ∈ Fin)
1311, 12syl 17 . 2 (𝜑 → ((𝑌 / ) ∖ 𝒫 𝑍) ∈ Fin)
14 sylow2a.p . . . . 5 (𝜑𝑃 pGrp 𝐺)
15 gagrp 17917 . . . . . . 7 ( ∈ (𝐺 GrpAct 𝑌) → 𝐺 ∈ Grp)
164, 15syl 17 . . . . . 6 (𝜑𝐺 ∈ Grp)
17 sylow2a.f . . . . . 6 (𝜑𝑋 ∈ Fin)
186pgpfi 18212 . . . . . 6 ((𝐺 ∈ Grp ∧ 𝑋 ∈ Fin) → (𝑃 pGrp 𝐺 ↔ (𝑃 ∈ ℙ ∧ ∃𝑛 ∈ ℕ0 (♯‘𝑋) = (𝑃𝑛))))
1916, 17, 18syl2anc 696 . . . . 5 (𝜑 → (𝑃 pGrp 𝐺 ↔ (𝑃 ∈ ℙ ∧ ∃𝑛 ∈ ℕ0 (♯‘𝑋) = (𝑃𝑛))))
2014, 19mpbid 222 . . . 4 (𝜑 → (𝑃 ∈ ℙ ∧ ∃𝑛 ∈ ℕ0 (♯‘𝑋) = (𝑃𝑛)))
2120simpld 477 . . 3 (𝜑𝑃 ∈ ℙ)
22 prmz 15583 . . 3 (𝑃 ∈ ℙ → 𝑃 ∈ ℤ)
2321, 22syl 17 . 2 (𝜑𝑃 ∈ ℤ)
24 eldifi 3867 . . . . 5 (𝑧 ∈ ((𝑌 / ) ∖ 𝒫 𝑍) → 𝑧 ∈ (𝑌 / ))
251adantr 472 . . . . . 6 ((𝜑𝑧 ∈ (𝑌 / )) → 𝑌 ∈ Fin)
269sselda 3736 . . . . . . 7 ((𝜑𝑧 ∈ (𝑌 / )) → 𝑧 ∈ 𝒫 𝑌)
2726elpwid 4306 . . . . . 6 ((𝜑𝑧 ∈ (𝑌 / )) → 𝑧𝑌)
28 ssfi 8337 . . . . . 6 ((𝑌 ∈ Fin ∧ 𝑧𝑌) → 𝑧 ∈ Fin)
2925, 27, 28syl2anc 696 . . . . 5 ((𝜑𝑧 ∈ (𝑌 / )) → 𝑧 ∈ Fin)
3024, 29sylan2 492 . . . 4 ((𝜑𝑧 ∈ ((𝑌 / ) ∖ 𝒫 𝑍)) → 𝑧 ∈ Fin)
31 hashcl 13331 . . . 4 (𝑧 ∈ Fin → (♯‘𝑧) ∈ ℕ0)
3230, 31syl 17 . . 3 ((𝜑𝑧 ∈ ((𝑌 / ) ∖ 𝒫 𝑍)) → (♯‘𝑧) ∈ ℕ0)
3332nn0zd 11664 . 2 ((𝜑𝑧 ∈ ((𝑌 / ) ∖ 𝒫 𝑍)) → (♯‘𝑧) ∈ ℤ)
34 eldif 3717 . . 3 (𝑧 ∈ ((𝑌 / ) ∖ 𝒫 𝑍) ↔ (𝑧 ∈ (𝑌 / ) ∧ ¬ 𝑧 ∈ 𝒫 𝑍))
35 eqid 2752 . . . . 5 (𝑌 / ) = (𝑌 / )
36 sseq1 3759 . . . . . . . 8 ([𝑤] = 𝑧 → ([𝑤] 𝑍𝑧𝑍))
37 selpw 4301 . . . . . . . 8 (𝑧 ∈ 𝒫 𝑍𝑧𝑍)
3836, 37syl6bbr 278 . . . . . . 7 ([𝑤] = 𝑧 → ([𝑤] 𝑍𝑧 ∈ 𝒫 𝑍))
3938notbid 307 . . . . . 6 ([𝑤] = 𝑧 → (¬ [𝑤] 𝑍 ↔ ¬ 𝑧 ∈ 𝒫 𝑍))
40 fveq2 6344 . . . . . . 7 ([𝑤] = 𝑧 → (♯‘[𝑤] ) = (♯‘𝑧))
4140breq2d 4808 . . . . . 6 ([𝑤] = 𝑧 → (𝑃 ∥ (♯‘[𝑤] ) ↔ 𝑃 ∥ (♯‘𝑧)))
4239, 41imbi12d 333 . . . . 5 ([𝑤] = 𝑧 → ((¬ [𝑤] 𝑍𝑃 ∥ (♯‘[𝑤] )) ↔ (¬ 𝑧 ∈ 𝒫 𝑍𝑃 ∥ (♯‘𝑧))))
4321adantr 472 . . . . . . . . . 10 ((𝜑𝑤𝑌) → 𝑃 ∈ ℙ)
448adantr 472 . . . . . . . . . . . . . 14 ((𝜑𝑤𝑌) → Er 𝑌)
45 simpr 479 . . . . . . . . . . . . . 14 ((𝜑𝑤𝑌) → 𝑤𝑌)
4644, 45erref 7923 . . . . . . . . . . . . 13 ((𝜑𝑤𝑌) → 𝑤 𝑤)
47 vex 3335 . . . . . . . . . . . . . 14 𝑤 ∈ V
4847, 47elec 7945 . . . . . . . . . . . . 13 (𝑤 ∈ [𝑤] 𝑤 𝑤)
4946, 48sylibr 224 . . . . . . . . . . . 12 ((𝜑𝑤𝑌) → 𝑤 ∈ [𝑤] )
50 ne0i 4056 . . . . . . . . . . . 12 (𝑤 ∈ [𝑤] → [𝑤] ≠ ∅)
5149, 50syl 17 . . . . . . . . . . 11 ((𝜑𝑤𝑌) → [𝑤] ≠ ∅)
528ecss 7947 . . . . . . . . . . . . . 14 (𝜑 → [𝑤] 𝑌)
53 ssfi 8337 . . . . . . . . . . . . . 14 ((𝑌 ∈ Fin ∧ [𝑤] 𝑌) → [𝑤] ∈ Fin)
541, 52, 53syl2anc 696 . . . . . . . . . . . . 13 (𝜑 → [𝑤] ∈ Fin)
5554adantr 472 . . . . . . . . . . . 12 ((𝜑𝑤𝑌) → [𝑤] ∈ Fin)
56 hashnncl 13341 . . . . . . . . . . . 12 ([𝑤] ∈ Fin → ((♯‘[𝑤] ) ∈ ℕ ↔ [𝑤] ≠ ∅))
5755, 56syl 17 . . . . . . . . . . 11 ((𝜑𝑤𝑌) → ((♯‘[𝑤] ) ∈ ℕ ↔ [𝑤] ≠ ∅))
5851, 57mpbird 247 . . . . . . . . . 10 ((𝜑𝑤𝑌) → (♯‘[𝑤] ) ∈ ℕ)
59 pceq0 15769 . . . . . . . . . 10 ((𝑃 ∈ ℙ ∧ (♯‘[𝑤] ) ∈ ℕ) → ((𝑃 pCnt (♯‘[𝑤] )) = 0 ↔ ¬ 𝑃 ∥ (♯‘[𝑤] )))
6043, 58, 59syl2anc 696 . . . . . . . . 9 ((𝜑𝑤𝑌) → ((𝑃 pCnt (♯‘[𝑤] )) = 0 ↔ ¬ 𝑃 ∥ (♯‘[𝑤] )))
61 oveq2 6813 . . . . . . . . . 10 ((𝑃 pCnt (♯‘[𝑤] )) = 0 → (𝑃↑(𝑃 pCnt (♯‘[𝑤] ))) = (𝑃↑0))
62 hashcl 13331 . . . . . . . . . . . . . . . . . . . . . 22 ([𝑤] ∈ Fin → (♯‘[𝑤] ) ∈ ℕ0)
6354, 62syl 17 . . . . . . . . . . . . . . . . . . . . 21 (𝜑 → (♯‘[𝑤] ) ∈ ℕ0)
6463nn0zd 11664 . . . . . . . . . . . . . . . . . . . 20 (𝜑 → (♯‘[𝑤] ) ∈ ℤ)
65 ssrab2 3820 . . . . . . . . . . . . . . . . . . . . . . 23 {𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤} ⊆ 𝑋
66 ssfi 8337 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑋 ∈ Fin ∧ {𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤} ⊆ 𝑋) → {𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤} ∈ Fin)
6717, 65, 66sylancl 697 . . . . . . . . . . . . . . . . . . . . . 22 (𝜑 → {𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤} ∈ Fin)
68 hashcl 13331 . . . . . . . . . . . . . . . . . . . . . 22 ({𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤} ∈ Fin → (♯‘{𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤}) ∈ ℕ0)
6967, 68syl 17 . . . . . . . . . . . . . . . . . . . . 21 (𝜑 → (♯‘{𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤}) ∈ ℕ0)
7069nn0zd 11664 . . . . . . . . . . . . . . . . . . . 20 (𝜑 → (♯‘{𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤}) ∈ ℤ)
71 dvdsmul1 15197 . . . . . . . . . . . . . . . . . . . 20 (((♯‘[𝑤] ) ∈ ℤ ∧ (♯‘{𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤}) ∈ ℤ) → (♯‘[𝑤] ) ∥ ((♯‘[𝑤] ) · (♯‘{𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤})))
7264, 70, 71syl2anc 696 . . . . . . . . . . . . . . . . . . 19 (𝜑 → (♯‘[𝑤] ) ∥ ((♯‘[𝑤] ) · (♯‘{𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤})))
7372adantr 472 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑤𝑌) → (♯‘[𝑤] ) ∥ ((♯‘[𝑤] ) · (♯‘{𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤})))
744adantr 472 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑤𝑌) → ∈ (𝐺 GrpAct 𝑌))
7517adantr 472 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑤𝑌) → 𝑋 ∈ Fin)
76 eqid 2752 . . . . . . . . . . . . . . . . . . . 20 {𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤} = {𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤}
77 eqid 2752 . . . . . . . . . . . . . . . . . . . 20 (𝐺 ~QG {𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤}) = (𝐺 ~QG {𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤})
786, 76, 77, 5orbsta2 17939 . . . . . . . . . . . . . . . . . . 19 ((( ∈ (𝐺 GrpAct 𝑌) ∧ 𝑤𝑌) ∧ 𝑋 ∈ Fin) → (♯‘𝑋) = ((♯‘[𝑤] ) · (♯‘{𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤})))
7974, 45, 75, 78syl21anc 1472 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑤𝑌) → (♯‘𝑋) = ((♯‘[𝑤] ) · (♯‘{𝑣𝑋 ∣ (𝑣 𝑤) = 𝑤})))
8073, 79breqtrrd 4824 . . . . . . . . . . . . . . . . 17 ((𝜑𝑤𝑌) → (♯‘[𝑤] ) ∥ (♯‘𝑋))
8120simprd 482 . . . . . . . . . . . . . . . . . 18 (𝜑 → ∃𝑛 ∈ ℕ0 (♯‘𝑋) = (𝑃𝑛))
8281adantr 472 . . . . . . . . . . . . . . . . 17 ((𝜑𝑤𝑌) → ∃𝑛 ∈ ℕ0 (♯‘𝑋) = (𝑃𝑛))
83 breq2 4800 . . . . . . . . . . . . . . . . . . 19 ((♯‘𝑋) = (𝑃𝑛) → ((♯‘[𝑤] ) ∥ (♯‘𝑋) ↔ (♯‘[𝑤] ) ∥ (𝑃𝑛)))
8483biimpcd 239 . . . . . . . . . . . . . . . . . 18 ((♯‘[𝑤] ) ∥ (♯‘𝑋) → ((♯‘𝑋) = (𝑃𝑛) → (♯‘[𝑤] ) ∥ (𝑃𝑛)))
8584reximdv 3146 . . . . . . . . . . . . . . . . 17 ((♯‘[𝑤] ) ∥ (♯‘𝑋) → (∃𝑛 ∈ ℕ0 (♯‘𝑋) = (𝑃𝑛) → ∃𝑛 ∈ ℕ0 (♯‘[𝑤] ) ∥ (𝑃𝑛)))
8680, 82, 85sylc 65 . . . . . . . . . . . . . . . 16 ((𝜑𝑤𝑌) → ∃𝑛 ∈ ℕ0 (♯‘[𝑤] ) ∥ (𝑃𝑛))
87 pcprmpw2 15780 . . . . . . . . . . . . . . . . 17 ((𝑃 ∈ ℙ ∧ (♯‘[𝑤] ) ∈ ℕ) → (∃𝑛 ∈ ℕ0 (♯‘[𝑤] ) ∥ (𝑃𝑛) ↔ (♯‘[𝑤] ) = (𝑃↑(𝑃 pCnt (♯‘[𝑤] )))))
8843, 58, 87syl2anc 696 . . . . . . . . . . . . . . . 16 ((𝜑𝑤𝑌) → (∃𝑛 ∈ ℕ0 (♯‘[𝑤] ) ∥ (𝑃𝑛) ↔ (♯‘[𝑤] ) = (𝑃↑(𝑃 pCnt (♯‘[𝑤] )))))
8986, 88mpbid 222 . . . . . . . . . . . . . . 15 ((𝜑𝑤𝑌) → (♯‘[𝑤] ) = (𝑃↑(𝑃 pCnt (♯‘[𝑤] ))))
9089eqcomd 2758 . . . . . . . . . . . . . 14 ((𝜑𝑤𝑌) → (𝑃↑(𝑃 pCnt (♯‘[𝑤] ))) = (♯‘[𝑤] ))
9123adantr 472 . . . . . . . . . . . . . . . . 17 ((𝜑𝑤𝑌) → 𝑃 ∈ ℤ)
9291zcnd 11667 . . . . . . . . . . . . . . . 16 ((𝜑𝑤𝑌) → 𝑃 ∈ ℂ)
9392exp0d 13188 . . . . . . . . . . . . . . 15 ((𝜑𝑤𝑌) → (𝑃↑0) = 1)
94 hash1 13376 . . . . . . . . . . . . . . 15 (♯‘1𝑜) = 1
9593, 94syl6eqr 2804 . . . . . . . . . . . . . 14 ((𝜑𝑤𝑌) → (𝑃↑0) = (♯‘1𝑜))
9690, 95eqeq12d 2767 . . . . . . . . . . . . 13 ((𝜑𝑤𝑌) → ((𝑃↑(𝑃 pCnt (♯‘[𝑤] ))) = (𝑃↑0) ↔ (♯‘[𝑤] ) = (♯‘1𝑜)))
97 df1o2 7733 . . . . . . . . . . . . . . 15 1𝑜 = {∅}
98 snfi 8195 . . . . . . . . . . . . . . 15 {∅} ∈ Fin
9997, 98eqeltri 2827 . . . . . . . . . . . . . 14 1𝑜 ∈ Fin
100 hashen 13321 . . . . . . . . . . . . . 14 (([𝑤] ∈ Fin ∧ 1𝑜 ∈ Fin) → ((♯‘[𝑤] ) = (♯‘1𝑜) ↔ [𝑤] ≈ 1𝑜))
10155, 99, 100sylancl 697 . . . . . . . . . . . . 13 ((𝜑𝑤𝑌) → ((♯‘[𝑤] ) = (♯‘1𝑜) ↔ [𝑤] ≈ 1𝑜))
10296, 101bitrd 268 . . . . . . . . . . . 12 ((𝜑𝑤𝑌) → ((𝑃↑(𝑃 pCnt (♯‘[𝑤] ))) = (𝑃↑0) ↔ [𝑤] ≈ 1𝑜))
103 en1b 8181 . . . . . . . . . . . 12 ([𝑤] ≈ 1𝑜 ↔ [𝑤] = { [𝑤] })
104102, 103syl6bb 276 . . . . . . . . . . 11 ((𝜑𝑤𝑌) → ((𝑃↑(𝑃 pCnt (♯‘[𝑤] ))) = (𝑃↑0) ↔ [𝑤] = { [𝑤] }))
10545adantr 472 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑤𝑌) ∧ (𝑋 ∧ [𝑤] = { [𝑤] })) → 𝑤𝑌)
1064ad2antrr 764 . . . . . . . . . . . . . . . . . . . 20 (((𝜑𝑤𝑌) ∧ (𝑋 ∧ [𝑤] = { [𝑤] })) → ∈ (𝐺 GrpAct 𝑌))
1076gaf 17920 . . . . . . . . . . . . . . . . . . . 20 ( ∈ (𝐺 GrpAct 𝑌) → :(𝑋 × 𝑌)⟶𝑌)
108106, 107syl 17 . . . . . . . . . . . . . . . . . . 19 (((𝜑𝑤𝑌) ∧ (𝑋 ∧ [𝑤] = { [𝑤] })) → :(𝑋 × 𝑌)⟶𝑌)
109 simprl 811 . . . . . . . . . . . . . . . . . . 19 (((𝜑𝑤𝑌) ∧ (𝑋 ∧ [𝑤] = { [𝑤] })) → 𝑋)
110108, 109, 105fovrnd 6963 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑤𝑌) ∧ (𝑋 ∧ [𝑤] = { [𝑤] })) → ( 𝑤) ∈ 𝑌)
111 eqid 2752 . . . . . . . . . . . . . . . . . . 19 ( 𝑤) = ( 𝑤)
112 oveq1 6812 . . . . . . . . . . . . . . . . . . . . 21 (𝑘 = → (𝑘 𝑤) = ( 𝑤))
113112eqeq1d 2754 . . . . . . . . . . . . . . . . . . . 20 (𝑘 = → ((𝑘 𝑤) = ( 𝑤) ↔ ( 𝑤) = ( 𝑤)))
114113rspcev 3441 . . . . . . . . . . . . . . . . . . 19 ((𝑋 ∧ ( 𝑤) = ( 𝑤)) → ∃𝑘𝑋 (𝑘 𝑤) = ( 𝑤))
115109, 111, 114sylancl 697 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑤𝑌) ∧ (𝑋 ∧ [𝑤] = { [𝑤] })) → ∃𝑘𝑋 (𝑘 𝑤) = ( 𝑤))
1165gaorb 17932 . . . . . . . . . . . . . . . . . 18 (𝑤 ( 𝑤) ↔ (𝑤𝑌 ∧ ( 𝑤) ∈ 𝑌 ∧ ∃𝑘𝑋 (𝑘 𝑤) = ( 𝑤)))
117105, 110, 115, 116syl3anbrc 1426 . . . . . . . . . . . . . . . . 17 (((𝜑𝑤𝑌) ∧ (𝑋 ∧ [𝑤] = { [𝑤] })) → 𝑤 ( 𝑤))
118 ovex 6833 . . . . . . . . . . . . . . . . . 18 ( 𝑤) ∈ V
119118, 47elec 7945 . . . . . . . . . . . . . . . . 17 (( 𝑤) ∈ [𝑤] 𝑤 ( 𝑤))
120117, 119sylibr 224 . . . . . . . . . . . . . . . 16 (((𝜑𝑤𝑌) ∧ (𝑋 ∧ [𝑤] = { [𝑤] })) → ( 𝑤) ∈ [𝑤] )
121 simprr 813 . . . . . . . . . . . . . . . 16 (((𝜑𝑤𝑌) ∧ (𝑋 ∧ [𝑤] = { [𝑤] })) → [𝑤] = { [𝑤] })
122120, 121eleqtrd 2833 . . . . . . . . . . . . . . 15 (((𝜑𝑤𝑌) ∧ (𝑋 ∧ [𝑤] = { [𝑤] })) → ( 𝑤) ∈ { [𝑤] })
123118elsn 4328 . . . . . . . . . . . . . . 15 (( 𝑤) ∈ { [𝑤] } ↔ ( 𝑤) = [𝑤] )
124122, 123sylib 208 . . . . . . . . . . . . . 14 (((𝜑𝑤𝑌) ∧ (𝑋 ∧ [𝑤] = { [𝑤] })) → ( 𝑤) = [𝑤] )
12549adantr 472 . . . . . . . . . . . . . . . 16 (((𝜑𝑤𝑌) ∧ (𝑋 ∧ [𝑤] = { [𝑤] })) → 𝑤 ∈ [𝑤] )
126125, 121eleqtrd 2833 . . . . . . . . . . . . . . 15 (((𝜑𝑤𝑌) ∧ (𝑋 ∧ [𝑤] = { [𝑤] })) → 𝑤 ∈ { [𝑤] })
12747elsn 4328 . . . . . . . . . . . . . . 15 (𝑤 ∈ { [𝑤] } ↔ 𝑤 = [𝑤] )
128126, 127sylib 208 . . . . . . . . . . . . . 14 (((𝜑𝑤𝑌) ∧ (𝑋 ∧ [𝑤] = { [𝑤] })) → 𝑤 = [𝑤] )
129124, 128eqtr4d 2789 . . . . . . . . . . . . 13 (((𝜑𝑤𝑌) ∧ (𝑋 ∧ [𝑤] = { [𝑤] })) → ( 𝑤) = 𝑤)
130129expr 644 . . . . . . . . . . . 12 (((𝜑𝑤𝑌) ∧ 𝑋) → ([𝑤] = { [𝑤] } → ( 𝑤) = 𝑤))
131130ralrimdva 3099 . . . . . . . . . . 11 ((𝜑𝑤𝑌) → ([𝑤] = { [𝑤] } → ∀𝑋 ( 𝑤) = 𝑤))
132104, 131sylbid 230 . . . . . . . . . 10 ((𝜑𝑤𝑌) → ((𝑃↑(𝑃 pCnt (♯‘[𝑤] ))) = (𝑃↑0) → ∀𝑋 ( 𝑤) = 𝑤))
13361, 132syl5 34 . . . . . . . . 9 ((𝜑𝑤𝑌) → ((𝑃 pCnt (♯‘[𝑤] )) = 0 → ∀𝑋 ( 𝑤) = 𝑤))
13460, 133sylbird 250 . . . . . . . 8 ((𝜑𝑤𝑌) → (¬ 𝑃 ∥ (♯‘[𝑤] ) → ∀𝑋 ( 𝑤) = 𝑤))
135 oveq2 6813 . . . . . . . . . . . . 13 (𝑢 = 𝑤 → ( 𝑢) = ( 𝑤))
136 id 22 . . . . . . . . . . . . 13 (𝑢 = 𝑤𝑢 = 𝑤)
137135, 136eqeq12d 2767 . . . . . . . . . . . 12 (𝑢 = 𝑤 → (( 𝑢) = 𝑢 ↔ ( 𝑤) = 𝑤))
138137ralbidv 3116 . . . . . . . . . . 11 (𝑢 = 𝑤 → (∀𝑋 ( 𝑢) = 𝑢 ↔ ∀𝑋 ( 𝑤) = 𝑤))
139 sylow2a.z . . . . . . . . . . 11 𝑍 = {𝑢𝑌 ∣ ∀𝑋 ( 𝑢) = 𝑢}
140138, 139elrab2 3499 . . . . . . . . . 10 (𝑤𝑍 ↔ (𝑤𝑌 ∧ ∀𝑋 ( 𝑤) = 𝑤))
141140baib 982 . . . . . . . . 9 (𝑤𝑌 → (𝑤𝑍 ↔ ∀𝑋 ( 𝑤) = 𝑤))
142141adantl 473 . . . . . . . 8 ((𝜑𝑤𝑌) → (𝑤𝑍 ↔ ∀𝑋 ( 𝑤) = 𝑤))
143134, 142sylibrd 249 . . . . . . 7 ((𝜑𝑤𝑌) → (¬ 𝑃 ∥ (♯‘[𝑤] ) → 𝑤𝑍))
1446, 4, 14, 17, 1, 139, 5sylow2alem1 18224 . . . . . . . . . 10 ((𝜑𝑤𝑍) → [𝑤] = {𝑤})
145 simpr 479 . . . . . . . . . . 11 ((𝜑𝑤𝑍) → 𝑤𝑍)
146145snssd 4477 . . . . . . . . . 10 ((𝜑𝑤𝑍) → {𝑤} ⊆ 𝑍)
147144, 146eqsstrd 3772 . . . . . . . . 9 ((𝜑𝑤𝑍) → [𝑤] 𝑍)
148147ex 449 . . . . . . . 8 (𝜑 → (𝑤𝑍 → [𝑤] 𝑍))
149148adantr 472 . . . . . . 7 ((𝜑𝑤𝑌) → (𝑤𝑍 → [𝑤] 𝑍))
150143, 149syld 47 . . . . . 6 ((𝜑𝑤𝑌) → (¬ 𝑃 ∥ (♯‘[𝑤] ) → [𝑤] 𝑍))
151150con1d 139 . . . . 5 ((𝜑𝑤𝑌) → (¬ [𝑤] 𝑍𝑃 ∥ (♯‘[𝑤] )))
15235, 42, 151ectocld 7973 . . . 4 ((𝜑𝑧 ∈ (𝑌 / )) → (¬ 𝑧 ∈ 𝒫 𝑍𝑃 ∥ (♯‘𝑧)))
153152impr 650 . . 3 ((𝜑 ∧ (𝑧 ∈ (𝑌 / ) ∧ ¬ 𝑧 ∈ 𝒫 𝑍)) → 𝑃 ∥ (♯‘𝑧))
15434, 153sylan2b 493 . 2 ((𝜑𝑧 ∈ ((𝑌 / ) ∖ 𝒫 𝑍)) → 𝑃 ∥ (♯‘𝑧))
15513, 23, 33, 154fsumdvds 15224 1 (𝜑𝑃 ∥ Σ𝑧 ∈ ((𝑌 / ) ∖ 𝒫 𝑍)(♯‘𝑧))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 196  wa 383   = wceq 1624  wcel 2131  wne 2924  wral 3042  wrex 3043  {crab 3046  cdif 3704  wss 3707  c0 4050  𝒫 cpw 4294  {csn 4313  {cpr 4315   cuni 4580   class class class wbr 4796  {copab 4856   × cxp 5256  wf 6037  cfv 6041  (class class class)co 6805  1𝑜c1o 7714   Er wer 7900  [cec 7901   / cqs 7902  cen 8110  Fincfn 8113  0cc0 10120  1c1 10121   · cmul 10125  cn 11204  0cn0 11476  cz 11561  cexp 13046  chash 13303  Σcsu 14607  cdvds 15174  cprime 15579   pCnt cpc 15735  Basecbs 16051  Grpcgrp 17615   ~QG cqg 17783   GrpAct cga 17914   pGrp cpgp 18138
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1863  ax-4 1878  ax-5 1980  ax-6 2046  ax-7 2082  ax-8 2133  ax-9 2140  ax-10 2160  ax-11 2175  ax-12 2188  ax-13 2383  ax-ext 2732  ax-rep 4915  ax-sep 4925  ax-nul 4933  ax-pow 4984  ax-pr 5047  ax-un 7106  ax-inf2 8703  ax-cnex 10176  ax-resscn 10177  ax-1cn 10178  ax-icn 10179  ax-addcl 10180  ax-addrcl 10181  ax-mulcl 10182  ax-mulrcl 10183  ax-mulcom 10184  ax-addass 10185  ax-mulass 10186  ax-distr 10187  ax-i2m1 10188  ax-1ne0 10189  ax-1rid 10190  ax-rnegex 10191  ax-rrecex 10192  ax-cnre 10193  ax-pre-lttri 10194  ax-pre-lttrn 10195  ax-pre-ltadd 10196  ax-pre-mulgt0 10197  ax-pre-sup 10198
This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3or 1073  df-3an 1074  df-tru 1627  df-fal 1630  df-ex 1846  df-nf 1851  df-sb 2039  df-eu 2603  df-mo 2604  df-clab 2739  df-cleq 2745  df-clel 2748  df-nfc 2883  df-ne 2925  df-nel 3028  df-ral 3047  df-rex 3048  df-reu 3049  df-rmo 3050  df-rab 3051  df-v 3334  df-sbc 3569  df-csb 3667  df-dif 3710  df-un 3712  df-in 3714  df-ss 3721  df-pss 3723  df-nul 4051  df-if 4223  df-pw 4296  df-sn 4314  df-pr 4316  df-tp 4318  df-op 4320  df-uni 4581  df-int 4620  df-iun 4666  df-disj 4765  df-br 4797  df-opab 4857  df-mpt 4874  df-tr 4897  df-id 5166  df-eprel 5171  df-po 5179  df-so 5180  df-fr 5217  df-se 5218  df-we 5219  df-xp 5264  df-rel 5265  df-cnv 5266  df-co 5267  df-dm 5268  df-rn 5269  df-res 5270  df-ima 5271  df-pred 5833  df-ord 5879  df-on 5880  df-lim 5881  df-suc 5882  df-iota 6004  df-fun 6043  df-fn 6044  df-f 6045  df-f1 6046  df-fo 6047  df-f1o 6048  df-fv 6049  df-isom 6050  df-riota 6766  df-ov 6808  df-oprab 6809  df-mpt2 6810  df-om 7223  df-1st 7325  df-2nd 7326  df-wrecs 7568  df-recs 7629  df-rdg 7667  df-1o 7721  df-2o 7722  df-oadd 7725  df-omul 7726  df-er 7903  df-ec 7905  df-qs 7909  df-map 8017  df-en 8114  df-dom 8115  df-sdom 8116  df-fin 8117  df-sup 8505  df-inf 8506  df-oi 8572  df-card 8947  df-acn 8950  df-cda 9174  df-pnf 10260  df-mnf 10261  df-xr 10262  df-ltxr 10263  df-le 10264  df-sub 10452  df-neg 10453  df-div 10869  df-nn 11205  df-2 11263  df-3 11264  df-n0 11477  df-xnn0 11548  df-z 11562  df-uz 11872  df-q 11974  df-rp 12018  df-fz 12512  df-fzo 12652  df-fl 12779  df-mod 12855  df-seq 12988  df-exp 13047  df-fac 13247  df-bc 13276  df-hash 13304  df-cj 14030  df-re 14031  df-im 14032  df-sqrt 14166  df-abs 14167  df-clim 14410  df-sum 14608  df-dvds 15175  df-gcd 15411  df-prm 15580  df-pc 15736  df-ndx 16054  df-slot 16055  df-base 16057  df-sets 16058  df-ress 16059  df-plusg 16148  df-0g 16296  df-mgm 17435  df-sgrp 17477  df-mnd 17488  df-submnd 17529  df-grp 17618  df-minusg 17619  df-sbg 17620  df-mulg 17734  df-subg 17784  df-eqg 17786  df-ga 17915  df-od 18140  df-pgp 18142
This theorem is referenced by:  sylow2a  18226
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