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Theorem sylow2blem3 19551
Description: Sylow's second theorem. Putting together the results of sylow2a 19548 and the orbit-stabilizer theorem to show that 𝑃 does not divide the set of all fixed points under the group action, we get that there is a fixed point of the group action, so that there is some 𝑔𝑋 with 𝑔𝐾 = 𝑔𝐾 for all 𝐻. This implies that invg(𝑔)𝑔𝐾, so is in the conjugated subgroup 𝑔𝐾invg(𝑔). (Contributed by Mario Carneiro, 18-Jan-2015.)
Hypotheses
Ref Expression
sylow2b.x 𝑋 = (Base‘𝐺)
sylow2b.xf (𝜑𝑋 ∈ Fin)
sylow2b.h (𝜑𝐻 ∈ (SubGrp‘𝐺))
sylow2b.k (𝜑𝐾 ∈ (SubGrp‘𝐺))
sylow2b.a + = (+g𝐺)
sylow2b.r = (𝐺 ~QG 𝐾)
sylow2b.m · = (𝑥𝐻, 𝑦 ∈ (𝑋 / ) ↦ ran (𝑧𝑦 ↦ (𝑥 + 𝑧)))
sylow2blem3.hp (𝜑𝑃 pGrp (𝐺s 𝐻))
sylow2blem3.kn (𝜑 → (♯‘𝐾) = (𝑃↑(𝑃 pCnt (♯‘𝑋))))
sylow2blem3.d = (-g𝐺)
Assertion
Ref Expression
sylow2blem3 (𝜑 → ∃𝑔𝑋 𝐻 ⊆ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔)))
Distinct variable groups:   𝑥,𝑔,𝑦,𝑧,𝐺   𝑔,𝐾,𝑥,𝑦,𝑧   · ,𝑔,𝑥,𝑦,𝑧   + ,𝑔,𝑥,𝑦,𝑧   ,𝑔,𝑥,𝑦,𝑧   𝜑,𝑔,𝑧   𝑥, ,𝑧   𝑔,𝐻,𝑥,𝑦,𝑧   𝑔,𝑋,𝑥,𝑦,𝑧
Allowed substitution hints:   𝜑(𝑥,𝑦)   𝑃(𝑥,𝑦,𝑧,𝑔)   (𝑦,𝑔)

Proof of Theorem sylow2blem3
Dummy variable 𝑢 is distinct from all other variables.
StepHypRef Expression
1 sylow2blem3.hp . . . . . . . . 9 (𝜑𝑃 pGrp (𝐺s 𝐻))
2 pgpprm 19522 . . . . . . . . 9 (𝑃 pGrp (𝐺s 𝐻) → 𝑃 ∈ ℙ)
31, 2syl 17 . . . . . . . 8 (𝜑𝑃 ∈ ℙ)
4 sylow2b.h . . . . . . . . . . 11 (𝜑𝐻 ∈ (SubGrp‘𝐺))
5 subgrcl 19061 . . . . . . . . . . 11 (𝐻 ∈ (SubGrp‘𝐺) → 𝐺 ∈ Grp)
64, 5syl 17 . . . . . . . . . 10 (𝜑𝐺 ∈ Grp)
7 sylow2b.x . . . . . . . . . . 11 𝑋 = (Base‘𝐺)
87grpbn0 18896 . . . . . . . . . 10 (𝐺 ∈ Grp → 𝑋 ≠ ∅)
96, 8syl 17 . . . . . . . . 9 (𝜑𝑋 ≠ ∅)
10 sylow2b.xf . . . . . . . . . 10 (𝜑𝑋 ∈ Fin)
11 hashnncl 14289 . . . . . . . . . 10 (𝑋 ∈ Fin → ((♯‘𝑋) ∈ ℕ ↔ 𝑋 ≠ ∅))
1210, 11syl 17 . . . . . . . . 9 (𝜑 → ((♯‘𝑋) ∈ ℕ ↔ 𝑋 ≠ ∅))
139, 12mpbird 257 . . . . . . . 8 (𝜑 → (♯‘𝑋) ∈ ℕ)
14 pcndvds2 16796 . . . . . . . 8 ((𝑃 ∈ ℙ ∧ (♯‘𝑋) ∈ ℕ) → ¬ 𝑃 ∥ ((♯‘𝑋) / (𝑃↑(𝑃 pCnt (♯‘𝑋)))))
153, 13, 14syl2anc 584 . . . . . . 7 (𝜑 → ¬ 𝑃 ∥ ((♯‘𝑋) / (𝑃↑(𝑃 pCnt (♯‘𝑋)))))
16 sylow2b.r . . . . . . . . . . 11 = (𝐺 ~QG 𝐾)
17 sylow2b.k . . . . . . . . . . 11 (𝜑𝐾 ∈ (SubGrp‘𝐺))
187, 16, 17, 10lagsubg2 19123 . . . . . . . . . 10 (𝜑 → (♯‘𝑋) = ((♯‘(𝑋 / )) · (♯‘𝐾)))
1918oveq1d 7373 . . . . . . . . 9 (𝜑 → ((♯‘𝑋) / (♯‘𝐾)) = (((♯‘(𝑋 / )) · (♯‘𝐾)) / (♯‘𝐾)))
20 sylow2blem3.kn . . . . . . . . . 10 (𝜑 → (♯‘𝐾) = (𝑃↑(𝑃 pCnt (♯‘𝑋))))
2120oveq2d 7374 . . . . . . . . 9 (𝜑 → ((♯‘𝑋) / (♯‘𝐾)) = ((♯‘𝑋) / (𝑃↑(𝑃 pCnt (♯‘𝑋)))))
22 pwfi 9219 . . . . . . . . . . . . . 14 (𝑋 ∈ Fin ↔ 𝒫 𝑋 ∈ Fin)
2310, 22sylib 218 . . . . . . . . . . . . 13 (𝜑 → 𝒫 𝑋 ∈ Fin)
247, 16eqger 19107 . . . . . . . . . . . . . . 15 (𝐾 ∈ (SubGrp‘𝐺) → Er 𝑋)
2517, 24syl 17 . . . . . . . . . . . . . 14 (𝜑 Er 𝑋)
2625qsss 8713 . . . . . . . . . . . . 13 (𝜑 → (𝑋 / ) ⊆ 𝒫 𝑋)
2723, 26ssfid 9169 . . . . . . . . . . . 12 (𝜑 → (𝑋 / ) ∈ Fin)
28 hashcl 14279 . . . . . . . . . . . 12 ((𝑋 / ) ∈ Fin → (♯‘(𝑋 / )) ∈ ℕ0)
2927, 28syl 17 . . . . . . . . . . 11 (𝜑 → (♯‘(𝑋 / )) ∈ ℕ0)
3029nn0cnd 12464 . . . . . . . . . 10 (𝜑 → (♯‘(𝑋 / )) ∈ ℂ)
31 eqid 2736 . . . . . . . . . . . . . . 15 (0g𝐺) = (0g𝐺)
3231subg0cl 19064 . . . . . . . . . . . . . 14 (𝐾 ∈ (SubGrp‘𝐺) → (0g𝐺) ∈ 𝐾)
3317, 32syl 17 . . . . . . . . . . . . 13 (𝜑 → (0g𝐺) ∈ 𝐾)
3433ne0d 4294 . . . . . . . . . . . 12 (𝜑𝐾 ≠ ∅)
357subgss 19057 . . . . . . . . . . . . . . 15 (𝐾 ∈ (SubGrp‘𝐺) → 𝐾𝑋)
3617, 35syl 17 . . . . . . . . . . . . . 14 (𝜑𝐾𝑋)
3710, 36ssfid 9169 . . . . . . . . . . . . 13 (𝜑𝐾 ∈ Fin)
38 hashnncl 14289 . . . . . . . . . . . . 13 (𝐾 ∈ Fin → ((♯‘𝐾) ∈ ℕ ↔ 𝐾 ≠ ∅))
3937, 38syl 17 . . . . . . . . . . . 12 (𝜑 → ((♯‘𝐾) ∈ ℕ ↔ 𝐾 ≠ ∅))
4034, 39mpbird 257 . . . . . . . . . . 11 (𝜑 → (♯‘𝐾) ∈ ℕ)
4140nncnd 12161 . . . . . . . . . 10 (𝜑 → (♯‘𝐾) ∈ ℂ)
4240nnne0d 12195 . . . . . . . . . 10 (𝜑 → (♯‘𝐾) ≠ 0)
4330, 41, 42divcan4d 11923 . . . . . . . . 9 (𝜑 → (((♯‘(𝑋 / )) · (♯‘𝐾)) / (♯‘𝐾)) = (♯‘(𝑋 / )))
4419, 21, 433eqtr3d 2779 . . . . . . . 8 (𝜑 → ((♯‘𝑋) / (𝑃↑(𝑃 pCnt (♯‘𝑋)))) = (♯‘(𝑋 / )))
4544breq2d 5110 . . . . . . 7 (𝜑 → (𝑃 ∥ ((♯‘𝑋) / (𝑃↑(𝑃 pCnt (♯‘𝑋)))) ↔ 𝑃 ∥ (♯‘(𝑋 / ))))
4615, 45mtbid 324 . . . . . 6 (𝜑 → ¬ 𝑃 ∥ (♯‘(𝑋 / )))
47 prmz 16602 . . . . . . . 8 (𝑃 ∈ ℙ → 𝑃 ∈ ℤ)
483, 47syl 17 . . . . . . 7 (𝜑𝑃 ∈ ℤ)
4929nn0zd 12513 . . . . . . 7 (𝜑 → (♯‘(𝑋 / )) ∈ ℤ)
50 ssrab2 4032 . . . . . . . . . 10 {𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧} ⊆ (𝑋 / )
51 ssfi 9097 . . . . . . . . . 10 (((𝑋 / ) ∈ Fin ∧ {𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧} ⊆ (𝑋 / )) → {𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧} ∈ Fin)
5227, 50, 51sylancl 586 . . . . . . . . 9 (𝜑 → {𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧} ∈ Fin)
53 hashcl 14279 . . . . . . . . 9 ({𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧} ∈ Fin → (♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧}) ∈ ℕ0)
5452, 53syl 17 . . . . . . . 8 (𝜑 → (♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧}) ∈ ℕ0)
5554nn0zd 12513 . . . . . . 7 (𝜑 → (♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧}) ∈ ℤ)
56 eqid 2736 . . . . . . . 8 (Base‘(𝐺s 𝐻)) = (Base‘(𝐺s 𝐻))
57 sylow2b.a . . . . . . . . 9 + = (+g𝐺)
58 sylow2b.m . . . . . . . . 9 · = (𝑥𝐻, 𝑦 ∈ (𝑋 / ) ↦ ran (𝑧𝑦 ↦ (𝑥 + 𝑧)))
597, 10, 4, 17, 57, 16, 58sylow2blem2 19550 . . . . . . . 8 (𝜑· ∈ ((𝐺s 𝐻) GrpAct (𝑋 / )))
60 eqid 2736 . . . . . . . . . . 11 (𝐺s 𝐻) = (𝐺s 𝐻)
6160subgbas 19060 . . . . . . . . . 10 (𝐻 ∈ (SubGrp‘𝐺) → 𝐻 = (Base‘(𝐺s 𝐻)))
624, 61syl 17 . . . . . . . . 9 (𝜑𝐻 = (Base‘(𝐺s 𝐻)))
637subgss 19057 . . . . . . . . . . 11 (𝐻 ∈ (SubGrp‘𝐺) → 𝐻𝑋)
644, 63syl 17 . . . . . . . . . 10 (𝜑𝐻𝑋)
6510, 64ssfid 9169 . . . . . . . . 9 (𝜑𝐻 ∈ Fin)
6662, 65eqeltrrd 2837 . . . . . . . 8 (𝜑 → (Base‘(𝐺s 𝐻)) ∈ Fin)
67 eqid 2736 . . . . . . . 8 {𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧} = {𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧}
68 eqid 2736 . . . . . . . 8 {⟨𝑥, 𝑦⟩ ∣ ({𝑥, 𝑦} ⊆ (𝑋 / ) ∧ ∃𝑔 ∈ (Base‘(𝐺s 𝐻))(𝑔 · 𝑥) = 𝑦)} = {⟨𝑥, 𝑦⟩ ∣ ({𝑥, 𝑦} ⊆ (𝑋 / ) ∧ ∃𝑔 ∈ (Base‘(𝐺s 𝐻))(𝑔 · 𝑥) = 𝑦)}
6956, 59, 1, 66, 27, 67, 68sylow2a 19548 . . . . . . 7 (𝜑𝑃 ∥ ((♯‘(𝑋 / )) − (♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧})))
70 dvdssub2 16228 . . . . . . 7 (((𝑃 ∈ ℤ ∧ (♯‘(𝑋 / )) ∈ ℤ ∧ (♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧}) ∈ ℤ) ∧ 𝑃 ∥ ((♯‘(𝑋 / )) − (♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧}))) → (𝑃 ∥ (♯‘(𝑋 / )) ↔ 𝑃 ∥ (♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧})))
7148, 49, 55, 69, 70syl31anc 1375 . . . . . 6 (𝜑 → (𝑃 ∥ (♯‘(𝑋 / )) ↔ 𝑃 ∥ (♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧})))
7246, 71mtbid 324 . . . . 5 (𝜑 → ¬ 𝑃 ∥ (♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧}))
73 hasheq0 14286 . . . . . . . 8 ({𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧} ∈ Fin → ((♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧}) = 0 ↔ {𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧} = ∅))
7452, 73syl 17 . . . . . . 7 (𝜑 → ((♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧}) = 0 ↔ {𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧} = ∅))
75 dvds0 16198 . . . . . . . . 9 (𝑃 ∈ ℤ → 𝑃 ∥ 0)
7648, 75syl 17 . . . . . . . 8 (𝜑𝑃 ∥ 0)
77 breq2 5102 . . . . . . . 8 ((♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧}) = 0 → (𝑃 ∥ (♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧}) ↔ 𝑃 ∥ 0))
7876, 77syl5ibrcom 247 . . . . . . 7 (𝜑 → ((♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧}) = 0 → 𝑃 ∥ (♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧})))
7974, 78sylbird 260 . . . . . 6 (𝜑 → ({𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧} = ∅ → 𝑃 ∥ (♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧})))
8079necon3bd 2946 . . . . 5 (𝜑 → (¬ 𝑃 ∥ (♯‘{𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧}) → {𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧} ≠ ∅))
8172, 80mpd 15 . . . 4 (𝜑 → {𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧} ≠ ∅)
82 rabn0 4341 . . . 4 ({𝑧 ∈ (𝑋 / ) ∣ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧} ≠ ∅ ↔ ∃𝑧 ∈ (𝑋 / )∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧)
8381, 82sylib 218 . . 3 (𝜑 → ∃𝑧 ∈ (𝑋 / )∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧)
8462raleqdv 3296 . . . 4 (𝜑 → (∀𝑢𝐻 (𝑢 · 𝑧) = 𝑧 ↔ ∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧))
8584rexbidv 3160 . . 3 (𝜑 → (∃𝑧 ∈ (𝑋 / )∀𝑢𝐻 (𝑢 · 𝑧) = 𝑧 ↔ ∃𝑧 ∈ (𝑋 / )∀𝑢 ∈ (Base‘(𝐺s 𝐻))(𝑢 · 𝑧) = 𝑧))
8683, 85mpbird 257 . 2 (𝜑 → ∃𝑧 ∈ (𝑋 / )∀𝑢𝐻 (𝑢 · 𝑧) = 𝑧)
87 vex 3444 . . . . 5 𝑧 ∈ V
8887elqs 8702 . . . 4 (𝑧 ∈ (𝑋 / ) ↔ ∃𝑔𝑋 𝑧 = [𝑔] )
89 simplrr 777 . . . . . . . . . . . . . . . . . . . 20 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → 𝑧 = [𝑔] )
9089oveq2d 7374 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → (𝑢 · 𝑧) = (𝑢 · [𝑔] ))
91 simprr 772 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → (𝑢 · 𝑧) = 𝑧)
92 simpll 766 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → 𝜑)
93 simprl 770 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → 𝑢𝐻)
94 simplrl 776 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → 𝑔𝑋)
957, 10, 4, 17, 57, 16, 58sylow2blem1 19549 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑𝑢𝐻𝑔𝑋) → (𝑢 · [𝑔] ) = [(𝑢 + 𝑔)] )
9692, 93, 94, 95syl3anc 1373 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → (𝑢 · [𝑔] ) = [(𝑢 + 𝑔)] )
9790, 91, 963eqtr3d 2779 . . . . . . . . . . . . . . . . . . . 20 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → 𝑧 = [(𝑢 + 𝑔)] )
9889, 97eqtr3d 2773 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → [𝑔] = [(𝑢 + 𝑔)] )
9925ad2antrr 726 . . . . . . . . . . . . . . . . . . . 20 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → Er 𝑋)
10099, 94erth 8689 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → (𝑔 (𝑢 + 𝑔) ↔ [𝑔] = [(𝑢 + 𝑔)] ))
10198, 100mpbird 257 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → 𝑔 (𝑢 + 𝑔))
1026ad2antrr 726 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → 𝐺 ∈ Grp)
10336ad2antrr 726 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → 𝐾𝑋)
104 eqid 2736 . . . . . . . . . . . . . . . . . . . 20 (invg𝐺) = (invg𝐺)
1057, 104, 57, 16eqgval 19106 . . . . . . . . . . . . . . . . . . 19 ((𝐺 ∈ Grp ∧ 𝐾𝑋) → (𝑔 (𝑢 + 𝑔) ↔ (𝑔𝑋 ∧ (𝑢 + 𝑔) ∈ 𝑋 ∧ (((invg𝐺)‘𝑔) + (𝑢 + 𝑔)) ∈ 𝐾)))
106102, 103, 105syl2anc 584 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → (𝑔 (𝑢 + 𝑔) ↔ (𝑔𝑋 ∧ (𝑢 + 𝑔) ∈ 𝑋 ∧ (((invg𝐺)‘𝑔) + (𝑢 + 𝑔)) ∈ 𝐾)))
107101, 106mpbid 232 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → (𝑔𝑋 ∧ (𝑢 + 𝑔) ∈ 𝑋 ∧ (((invg𝐺)‘𝑔) + (𝑢 + 𝑔)) ∈ 𝐾))
108107simp3d 1144 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → (((invg𝐺)‘𝑔) + (𝑢 + 𝑔)) ∈ 𝐾)
109 oveq2 7366 . . . . . . . . . . . . . . . . . 18 (𝑥 = (((invg𝐺)‘𝑔) + (𝑢 + 𝑔)) → (𝑔 + 𝑥) = (𝑔 + (((invg𝐺)‘𝑔) + (𝑢 + 𝑔))))
110109oveq1d 7373 . . . . . . . . . . . . . . . . 17 (𝑥 = (((invg𝐺)‘𝑔) + (𝑢 + 𝑔)) → ((𝑔 + 𝑥) 𝑔) = ((𝑔 + (((invg𝐺)‘𝑔) + (𝑢 + 𝑔))) 𝑔))
111 eqid 2736 . . . . . . . . . . . . . . . . 17 (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔)) = (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔))
112 ovex 7391 . . . . . . . . . . . . . . . . 17 ((𝑔 + (((invg𝐺)‘𝑔) + (𝑢 + 𝑔))) 𝑔) ∈ V
113110, 111, 112fvmpt 6941 . . . . . . . . . . . . . . . 16 ((((invg𝐺)‘𝑔) + (𝑢 + 𝑔)) ∈ 𝐾 → ((𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔))‘(((invg𝐺)‘𝑔) + (𝑢 + 𝑔))) = ((𝑔 + (((invg𝐺)‘𝑔) + (𝑢 + 𝑔))) 𝑔))
114108, 113syl 17 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → ((𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔))‘(((invg𝐺)‘𝑔) + (𝑢 + 𝑔))) = ((𝑔 + (((invg𝐺)‘𝑔) + (𝑢 + 𝑔))) 𝑔))
1157, 57, 31, 104grprinv 18920 . . . . . . . . . . . . . . . . . . 19 ((𝐺 ∈ Grp ∧ 𝑔𝑋) → (𝑔 + ((invg𝐺)‘𝑔)) = (0g𝐺))
116102, 94, 115syl2anc 584 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → (𝑔 + ((invg𝐺)‘𝑔)) = (0g𝐺))
117116oveq1d 7373 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → ((𝑔 + ((invg𝐺)‘𝑔)) + (𝑢 + 𝑔)) = ((0g𝐺) + (𝑢 + 𝑔)))
1187, 104grpinvcl 18917 . . . . . . . . . . . . . . . . . . 19 ((𝐺 ∈ Grp ∧ 𝑔𝑋) → ((invg𝐺)‘𝑔) ∈ 𝑋)
119102, 94, 118syl2anc 584 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → ((invg𝐺)‘𝑔) ∈ 𝑋)
12064ad2antrr 726 . . . . . . . . . . . . . . . . . . . 20 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → 𝐻𝑋)
121120, 93sseldd 3934 . . . . . . . . . . . . . . . . . . 19 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → 𝑢𝑋)
1227, 57grpcl 18871 . . . . . . . . . . . . . . . . . . 19 ((𝐺 ∈ Grp ∧ 𝑢𝑋𝑔𝑋) → (𝑢 + 𝑔) ∈ 𝑋)
123102, 121, 94, 122syl3anc 1373 . . . . . . . . . . . . . . . . . 18 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → (𝑢 + 𝑔) ∈ 𝑋)
1247, 57grpass 18872 . . . . . . . . . . . . . . . . . 18 ((𝐺 ∈ Grp ∧ (𝑔𝑋 ∧ ((invg𝐺)‘𝑔) ∈ 𝑋 ∧ (𝑢 + 𝑔) ∈ 𝑋)) → ((𝑔 + ((invg𝐺)‘𝑔)) + (𝑢 + 𝑔)) = (𝑔 + (((invg𝐺)‘𝑔) + (𝑢 + 𝑔))))
125102, 94, 119, 123, 124syl13anc 1374 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → ((𝑔 + ((invg𝐺)‘𝑔)) + (𝑢 + 𝑔)) = (𝑔 + (((invg𝐺)‘𝑔) + (𝑢 + 𝑔))))
1267, 57, 31grplid 18897 . . . . . . . . . . . . . . . . . 18 ((𝐺 ∈ Grp ∧ (𝑢 + 𝑔) ∈ 𝑋) → ((0g𝐺) + (𝑢 + 𝑔)) = (𝑢 + 𝑔))
127102, 123, 126syl2anc 584 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → ((0g𝐺) + (𝑢 + 𝑔)) = (𝑢 + 𝑔))
128117, 125, 1273eqtr3d 2779 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → (𝑔 + (((invg𝐺)‘𝑔) + (𝑢 + 𝑔))) = (𝑢 + 𝑔))
129128oveq1d 7373 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → ((𝑔 + (((invg𝐺)‘𝑔) + (𝑢 + 𝑔))) 𝑔) = ((𝑢 + 𝑔) 𝑔))
130 sylow2blem3.d . . . . . . . . . . . . . . . . 17 = (-g𝐺)
1317, 57, 130grppncan 18961 . . . . . . . . . . . . . . . 16 ((𝐺 ∈ Grp ∧ 𝑢𝑋𝑔𝑋) → ((𝑢 + 𝑔) 𝑔) = 𝑢)
132102, 121, 94, 131syl3anc 1373 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → ((𝑢 + 𝑔) 𝑔) = 𝑢)
133114, 129, 1323eqtrd 2775 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → ((𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔))‘(((invg𝐺)‘𝑔) + (𝑢 + 𝑔))) = 𝑢)
134 ovex 7391 . . . . . . . . . . . . . . . 16 ((𝑔 + 𝑥) 𝑔) ∈ V
135134, 111fnmpti 6635 . . . . . . . . . . . . . . 15 (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔)) Fn 𝐾
136 fnfvelrn 7025 . . . . . . . . . . . . . . 15 (((𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔)) Fn 𝐾 ∧ (((invg𝐺)‘𝑔) + (𝑢 + 𝑔)) ∈ 𝐾) → ((𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔))‘(((invg𝐺)‘𝑔) + (𝑢 + 𝑔))) ∈ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔)))
137135, 108, 136sylancr 587 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → ((𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔))‘(((invg𝐺)‘𝑔) + (𝑢 + 𝑔))) ∈ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔)))
138133, 137eqeltrrd 2837 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ (𝑢𝐻 ∧ (𝑢 · 𝑧) = 𝑧)) → 𝑢 ∈ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔)))
139138expr 456 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ 𝑢𝐻) → ((𝑢 · 𝑧) = 𝑧𝑢 ∈ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔))))
140139ralimdva 3148 . . . . . . . . . . 11 ((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) → (∀𝑢𝐻 (𝑢 · 𝑧) = 𝑧 → ∀𝑢𝐻 𝑢 ∈ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔))))
141140imp 406 . . . . . . . . . 10 (((𝜑 ∧ (𝑔𝑋𝑧 = [𝑔] )) ∧ ∀𝑢𝐻 (𝑢 · 𝑧) = 𝑧) → ∀𝑢𝐻 𝑢 ∈ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔)))
142141an32s 652 . . . . . . . . 9 (((𝜑 ∧ ∀𝑢𝐻 (𝑢 · 𝑧) = 𝑧) ∧ (𝑔𝑋𝑧 = [𝑔] )) → ∀𝑢𝐻 𝑢 ∈ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔)))
143 dfss3 3922 . . . . . . . . 9 (𝐻 ⊆ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔)) ↔ ∀𝑢𝐻 𝑢 ∈ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔)))
144142, 143sylibr 234 . . . . . . . 8 (((𝜑 ∧ ∀𝑢𝐻 (𝑢 · 𝑧) = 𝑧) ∧ (𝑔𝑋𝑧 = [𝑔] )) → 𝐻 ⊆ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔)))
145144expr 456 . . . . . . 7 (((𝜑 ∧ ∀𝑢𝐻 (𝑢 · 𝑧) = 𝑧) ∧ 𝑔𝑋) → (𝑧 = [𝑔] 𝐻 ⊆ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔))))
146145reximdva 3149 . . . . . 6 ((𝜑 ∧ ∀𝑢𝐻 (𝑢 · 𝑧) = 𝑧) → (∃𝑔𝑋 𝑧 = [𝑔] → ∃𝑔𝑋 𝐻 ⊆ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔))))
147146ex 412 . . . . 5 (𝜑 → (∀𝑢𝐻 (𝑢 · 𝑧) = 𝑧 → (∃𝑔𝑋 𝑧 = [𝑔] → ∃𝑔𝑋 𝐻 ⊆ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔)))))
148147com23 86 . . . 4 (𝜑 → (∃𝑔𝑋 𝑧 = [𝑔] → (∀𝑢𝐻 (𝑢 · 𝑧) = 𝑧 → ∃𝑔𝑋 𝐻 ⊆ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔)))))
14988, 148biimtrid 242 . . 3 (𝜑 → (𝑧 ∈ (𝑋 / ) → (∀𝑢𝐻 (𝑢 · 𝑧) = 𝑧 → ∃𝑔𝑋 𝐻 ⊆ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔)))))
150149rexlimdv 3135 . 2 (𝜑 → (∃𝑧 ∈ (𝑋 / )∀𝑢𝐻 (𝑢 · 𝑧) = 𝑧 → ∃𝑔𝑋 𝐻 ⊆ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔))))
15186, 150mpd 15 1 (𝜑 → ∃𝑔𝑋 𝐻 ⊆ ran (𝑥𝐾 ↦ ((𝑔 + 𝑥) 𝑔)))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 206  wa 395  w3a 1086   = wceq 1541  wcel 2113  wne 2932  wral 3051  wrex 3060  {crab 3399  wss 3901  c0 4285  𝒫 cpw 4554  {cpr 4582   class class class wbr 5098  {copab 5160  cmpt 5179  ran crn 5625   Fn wfn 6487  cfv 6492  (class class class)co 7358  cmpo 7360   Er wer 8632  [cec 8633   / cqs 8634  Fincfn 8883  0cc0 11026   · cmul 11031  cmin 11364   / cdiv 11794  cn 12145  0cn0 12401  cz 12488  cexp 13984  chash 14253  cdvds 16179  cprime 16598   pCnt cpc 16764  Basecbs 17136  s cress 17157  +gcplusg 17177  0gc0g 17359  Grpcgrp 18863  invgcminusg 18864  -gcsg 18865  SubGrpcsubg 19050   ~QG cqg 19052   pGrp cpgp 19455
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2115  ax-9 2123  ax-10 2146  ax-11 2162  ax-12 2184  ax-ext 2708  ax-rep 5224  ax-sep 5241  ax-nul 5251  ax-pow 5310  ax-pr 5377  ax-un 7680  ax-inf2 9550  ax-cnex 11082  ax-resscn 11083  ax-1cn 11084  ax-icn 11085  ax-addcl 11086  ax-addrcl 11087  ax-mulcl 11088  ax-mulrcl 11089  ax-mulcom 11090  ax-addass 11091  ax-mulass 11092  ax-distr 11093  ax-i2m1 11094  ax-1ne0 11095  ax-1rid 11096  ax-rnegex 11097  ax-rrecex 11098  ax-cnre 11099  ax-pre-lttri 11100  ax-pre-lttrn 11101  ax-pre-ltadd 11102  ax-pre-mulgt0 11103  ax-pre-sup 11104
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-mo 2539  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2811  df-nfc 2885  df-ne 2933  df-nel 3037  df-ral 3052  df-rex 3061  df-rmo 3350  df-reu 3351  df-rab 3400  df-v 3442  df-sbc 3741  df-csb 3850  df-dif 3904  df-un 3906  df-in 3908  df-ss 3918  df-pss 3921  df-nul 4286  df-if 4480  df-pw 4556  df-sn 4581  df-pr 4583  df-op 4587  df-uni 4864  df-int 4903  df-iun 4948  df-disj 5066  df-br 5099  df-opab 5161  df-mpt 5180  df-tr 5206  df-id 5519  df-eprel 5524  df-po 5532  df-so 5533  df-fr 5577  df-se 5578  df-we 5579  df-xp 5630  df-rel 5631  df-cnv 5632  df-co 5633  df-dm 5634  df-rn 5635  df-res 5636  df-ima 5637  df-pred 6259  df-ord 6320  df-on 6321  df-lim 6322  df-suc 6323  df-iota 6448  df-fun 6494  df-fn 6495  df-f 6496  df-f1 6497  df-fo 6498  df-f1o 6499  df-fv 6500  df-isom 6501  df-riota 7315  df-ov 7361  df-oprab 7362  df-mpo 7363  df-om 7809  df-1st 7933  df-2nd 7934  df-frecs 8223  df-wrecs 8254  df-recs 8303  df-rdg 8341  df-1o 8397  df-2o 8398  df-oadd 8401  df-omul 8402  df-er 8635  df-ec 8637  df-qs 8641  df-map 8765  df-en 8884  df-dom 8885  df-sdom 8886  df-fin 8887  df-sup 9345  df-inf 9346  df-oi 9415  df-dju 9813  df-card 9851  df-acn 9854  df-pnf 11168  df-mnf 11169  df-xr 11170  df-ltxr 11171  df-le 11172  df-sub 11366  df-neg 11367  df-div 11795  df-nn 12146  df-2 12208  df-3 12209  df-n0 12402  df-xnn0 12475  df-z 12489  df-uz 12752  df-q 12862  df-rp 12906  df-fz 13424  df-fzo 13571  df-fl 13712  df-mod 13790  df-seq 13925  df-exp 13985  df-fac 14197  df-bc 14226  df-hash 14254  df-cj 15022  df-re 15023  df-im 15024  df-sqrt 15158  df-abs 15159  df-clim 15411  df-sum 15610  df-dvds 16180  df-gcd 16422  df-prm 16599  df-pc 16765  df-sets 17091  df-slot 17109  df-ndx 17121  df-base 17137  df-ress 17158  df-plusg 17190  df-0g 17361  df-mgm 18565  df-sgrp 18644  df-mnd 18660  df-submnd 18709  df-grp 18866  df-minusg 18867  df-sbg 18868  df-mulg 18998  df-subg 19053  df-eqg 19055  df-ga 19219  df-od 19457  df-pgp 19459
This theorem is referenced by:  sylow2b  19552
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