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Theorem sylow3lem1 19489

Description: Lemma for sylow3 19495, first part. (Contributed by Mario Carneiro, 19-Jan-2015.)

**Hypotheses**
Ref	Expression
sylow3.x	⊢ 𝑋 = (Base‘𝐺)
sylow3.g	⊢ (𝜑 → 𝐺 ∈ Grp)
sylow3.xf	⊢ (𝜑 → 𝑋 ∈ Fin)
sylow3.p	⊢ (𝜑 → 𝑃 ∈ ℙ)
sylow3lem1.a	⊢ + = (+_g‘𝐺)
sylow3lem1.d	⊢ − = (-_g‘𝐺)
sylow3lem1.m	⊢ ⊕ = (𝑥 ∈ 𝑋, 𝑦 ∈ (𝑃 pSyl 𝐺) ↦ ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)))

**Assertion**
Ref	Expression
sylow3lem1	⊢ (𝜑 → ⊕ ∈ (𝐺 GrpAct (𝑃 pSyl 𝐺)))

Distinct variable groups: 𝑥,𝑦,𝑧, − 𝑥, ⊕ ,𝑦,𝑧 𝑥,𝑋,𝑦,𝑧 𝑥,𝐺,𝑦,𝑧 𝜑,𝑥,𝑦,𝑧 𝑥, + ,𝑦,𝑧 𝑥,𝑃,𝑦,𝑧

Proof of Theorem sylow3lem1 Dummy variables 𝑎 𝑏 𝑐 𝑢 𝑣 𝑤 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		sylow3.g	. . 3 ⊢ (𝜑 → 𝐺 ∈ Grp)
2		ovex 7438	. . 3 ⊢ (𝑃 pSyl 𝐺) ∈ V
3	1, 2	jctir 521	. 2 ⊢ (𝜑 → (𝐺 ∈ Grp ∧ (𝑃 pSyl 𝐺) ∈ V))
4		sylow3.xf	. . . . . . . . . . 11 ⊢ (𝜑 → 𝑋 ∈ Fin)
5		sylow3.p	. . . . . . . . . . 11 ⊢ (𝜑 → 𝑃 ∈ ℙ)
6		sylow3.x	. . . . . . . . . . . 12 ⊢ 𝑋 = (Base‘𝐺)
7	6	fislw 19487	. . . . . . . . . . 11 ⊢ ((𝐺 ∈ Grp ∧ 𝑋 ∈ Fin ∧ 𝑃 ∈ ℙ) → (𝑦 ∈ (𝑃 pSyl 𝐺) ↔ (𝑦 ∈ (SubGrp‘𝐺) ∧ (♯‘𝑦) = (𝑃↑(𝑃 pCnt (♯‘𝑋))))))
8	1, 4, 5, 7	syl3anc 1371	. . . . . . . . . 10 ⊢ (𝜑 → (𝑦 ∈ (𝑃 pSyl 𝐺) ↔ (𝑦 ∈ (SubGrp‘𝐺) ∧ (♯‘𝑦) = (𝑃↑(𝑃 pCnt (♯‘𝑋))))))
9	8	biimpa 477	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺)) → (𝑦 ∈ (SubGrp‘𝐺) ∧ (♯‘𝑦) = (𝑃↑(𝑃 pCnt (♯‘𝑋)))))
10	9	adantrl 714	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺))) → (𝑦 ∈ (SubGrp‘𝐺) ∧ (♯‘𝑦) = (𝑃↑(𝑃 pCnt (♯‘𝑋)))))
11	10	simpld 495	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺))) → 𝑦 ∈ (SubGrp‘𝐺))
12		simprl 769	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺))) → 𝑥 ∈ 𝑋)
13		sylow3lem1.a	. . . . . . . 8 ⊢ + = (+_g‘𝐺)
14		sylow3lem1.d	. . . . . . . 8 ⊢ − = (-_g‘𝐺)
15		eqid 2732	. . . . . . . 8 ⊢ (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) = (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥))
16	6, 13, 14, 15	conjsubg 19118	. . . . . . 7 ⊢ ((𝑦 ∈ (SubGrp‘𝐺) ∧ 𝑥 ∈ 𝑋) → ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) ∈ (SubGrp‘𝐺))
17	11, 12, 16	syl2anc 584	. . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺))) → ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) ∈ (SubGrp‘𝐺))
18	6, 13, 14, 15	conjsubgen 19119	. . . . . . . . 9 ⊢ ((𝑦 ∈ (SubGrp‘𝐺) ∧ 𝑥 ∈ 𝑋) → 𝑦 ≈ ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)))
19	11, 12, 18	syl2anc 584	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺))) → 𝑦 ≈ ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)))
20	4	adantr 481	. . . . . . . . . 10 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺))) → 𝑋 ∈ Fin)
21	6	subgss 19001	. . . . . . . . . . 11 ⊢ (𝑦 ∈ (SubGrp‘𝐺) → 𝑦 ⊆ 𝑋)
22	11, 21	syl 17	. . . . . . . . . 10 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺))) → 𝑦 ⊆ 𝑋)
23	20, 22	ssfid 9263	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺))) → 𝑦 ∈ Fin)
24	6	subgss 19001	. . . . . . . . . . 11 ⊢ (ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) ∈ (SubGrp‘𝐺) → ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) ⊆ 𝑋)
25	17, 24	syl 17	. . . . . . . . . 10 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺))) → ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) ⊆ 𝑋)
26	20, 25	ssfid 9263	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺))) → ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) ∈ Fin)
27		hashen 14303	. . . . . . . . 9 ⊢ ((𝑦 ∈ Fin ∧ ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) ∈ Fin) → ((♯‘𝑦) = (♯‘ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥))) ↔ 𝑦 ≈ ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥))))
28	23, 26, 27	syl2anc 584	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺))) → ((♯‘𝑦) = (♯‘ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥))) ↔ 𝑦 ≈ ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥))))
29	19, 28	mpbird 256	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺))) → (♯‘𝑦) = (♯‘ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥))))
30	10	simprd 496	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺))) → (♯‘𝑦) = (𝑃↑(𝑃 pCnt (♯‘𝑋))))
31	29, 30	eqtr3d 2774	. . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺))) → (♯‘ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥))) = (𝑃↑(𝑃 pCnt (♯‘𝑋))))
32	6	fislw 19487	. . . . . . . 8 ⊢ ((𝐺 ∈ Grp ∧ 𝑋 ∈ Fin ∧ 𝑃 ∈ ℙ) → (ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) ∈ (𝑃 pSyl 𝐺) ↔ (ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) ∈ (SubGrp‘𝐺) ∧ (♯‘ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥))) = (𝑃↑(𝑃 pCnt (♯‘𝑋))))))
33	1, 4, 5, 32	syl3anc 1371	. . . . . . 7 ⊢ (𝜑 → (ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) ∈ (𝑃 pSyl 𝐺) ↔ (ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) ∈ (SubGrp‘𝐺) ∧ (♯‘ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥))) = (𝑃↑(𝑃 pCnt (♯‘𝑋))))))
34	33	adantr 481	. . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺))) → (ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) ∈ (𝑃 pSyl 𝐺) ↔ (ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) ∈ (SubGrp‘𝐺) ∧ (♯‘ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥))) = (𝑃↑(𝑃 pCnt (♯‘𝑋))))))
35	17, 31, 34	mpbir2and 711	. . . . 5 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑋 ∧ 𝑦 ∈ (𝑃 pSyl 𝐺))) → ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) ∈ (𝑃 pSyl 𝐺))
36	35	ralrimivva 3200	. . . 4 ⊢ (𝜑 → ∀𝑥 ∈ 𝑋 ∀𝑦 ∈ (𝑃 pSyl 𝐺)ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) ∈ (𝑃 pSyl 𝐺))
37		sylow3lem1.m	. . . . 5 ⊢ ⊕ = (𝑥 ∈ 𝑋, 𝑦 ∈ (𝑃 pSyl 𝐺) ↦ ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)))
38	37	fmpo 8050	. . . 4 ⊢ (∀𝑥 ∈ 𝑋 ∀𝑦 ∈ (𝑃 pSyl 𝐺)ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) ∈ (𝑃 pSyl 𝐺) ↔ ⊕ :(𝑋 × (𝑃 pSyl 𝐺))⟶(𝑃 pSyl 𝐺))
39	36, 38	sylib 217	. . 3 ⊢ (𝜑 → ⊕ :(𝑋 × (𝑃 pSyl 𝐺))⟶(𝑃 pSyl 𝐺))
40	1	adantr 481	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) → 𝐺 ∈ Grp)
41		eqid 2732	. . . . . . . . 9 ⊢ (0_g‘𝐺) = (0_g‘𝐺)
42	6, 41	grpidcl 18846	. . . . . . . 8 ⊢ (𝐺 ∈ Grp → (0_g‘𝐺) ∈ 𝑋)
43	40, 42	syl 17	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) → (0_g‘𝐺) ∈ 𝑋)
44		simpr 485	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) → 𝑎 ∈ (𝑃 pSyl 𝐺))
45		simpr 485	. . . . . . . . . 10 ⊢ ((𝑥 = (0_g‘𝐺) ∧ 𝑦 = 𝑎) → 𝑦 = 𝑎)
46		simpl 483	. . . . . . . . . . . 12 ⊢ ((𝑥 = (0_g‘𝐺) ∧ 𝑦 = 𝑎) → 𝑥 = (0_g‘𝐺))
47	46	oveq1d 7420	. . . . . . . . . . 11 ⊢ ((𝑥 = (0_g‘𝐺) ∧ 𝑦 = 𝑎) → (𝑥 + 𝑧) = ((0_g‘𝐺) + 𝑧))
48	47, 46	oveq12d 7423	. . . . . . . . . 10 ⊢ ((𝑥 = (0_g‘𝐺) ∧ 𝑦 = 𝑎) → ((𝑥 + 𝑧) − 𝑥) = (((0_g‘𝐺) + 𝑧) − (0_g‘𝐺)))
49	45, 48	mpteq12dv 5238	. . . . . . . . 9 ⊢ ((𝑥 = (0_g‘𝐺) ∧ 𝑦 = 𝑎) → (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) = (𝑧 ∈ 𝑎 ↦ (((0_g‘𝐺) + 𝑧) − (0_g‘𝐺))))
50	49	rneqd 5935	. . . . . . . 8 ⊢ ((𝑥 = (0_g‘𝐺) ∧ 𝑦 = 𝑎) → ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) = ran (𝑧 ∈ 𝑎 ↦ (((0_g‘𝐺) + 𝑧) − (0_g‘𝐺))))
51		vex 3478	. . . . . . . . . 10 ⊢ 𝑎 ∈ V
52	51	mptex 7221	. . . . . . . . 9 ⊢ (𝑧 ∈ 𝑎 ↦ (((0_g‘𝐺) + 𝑧) − (0_g‘𝐺))) ∈ V
53	52	rnex 7899	. . . . . . . 8 ⊢ ran (𝑧 ∈ 𝑎 ↦ (((0_g‘𝐺) + 𝑧) − (0_g‘𝐺))) ∈ V
54	50, 37, 53	ovmpoa 7559	. . . . . . 7 ⊢ (((0_g‘𝐺) ∈ 𝑋 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) → ((0_g‘𝐺) ⊕ 𝑎) = ran (𝑧 ∈ 𝑎 ↦ (((0_g‘𝐺) + 𝑧) − (0_g‘𝐺))))
55	43, 44, 54	syl2anc 584	. . . . . 6 ⊢ ((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) → ((0_g‘𝐺) ⊕ 𝑎) = ran (𝑧 ∈ 𝑎 ↦ (((0_g‘𝐺) + 𝑧) − (0_g‘𝐺))))
56	1	ad2antrr 724	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ 𝑧 ∈ 𝑎) → 𝐺 ∈ Grp)
57		slwsubg 19472	. . . . . . . . . . . . . . . 16 ⊢ (𝑎 ∈ (𝑃 pSyl 𝐺) → 𝑎 ∈ (SubGrp‘𝐺))
58	57	adantl 482	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) → 𝑎 ∈ (SubGrp‘𝐺))
59	6	subgss 19001	. . . . . . . . . . . . . . 15 ⊢ (𝑎 ∈ (SubGrp‘𝐺) → 𝑎 ⊆ 𝑋)
60	58, 59	syl 17	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) → 𝑎 ⊆ 𝑋)
61	60	sselda 3981	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ 𝑧 ∈ 𝑎) → 𝑧 ∈ 𝑋)
62	6, 13, 41	grplid 18848	. . . . . . . . . . . . 13 ⊢ ((𝐺 ∈ Grp ∧ 𝑧 ∈ 𝑋) → ((0_g‘𝐺) + 𝑧) = 𝑧)
63	56, 61, 62	syl2anc 584	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ 𝑧 ∈ 𝑎) → ((0_g‘𝐺) + 𝑧) = 𝑧)
64	63	oveq1d 7420	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ 𝑧 ∈ 𝑎) → (((0_g‘𝐺) + 𝑧) − (0_g‘𝐺)) = (𝑧 − (0_g‘𝐺)))
65	6, 41, 14	grpsubid1 18904	. . . . . . . . . . . 12 ⊢ ((𝐺 ∈ Grp ∧ 𝑧 ∈ 𝑋) → (𝑧 − (0_g‘𝐺)) = 𝑧)
66	56, 61, 65	syl2anc 584	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ 𝑧 ∈ 𝑎) → (𝑧 − (0_g‘𝐺)) = 𝑧)
67	64, 66	eqtrd 2772	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ 𝑧 ∈ 𝑎) → (((0_g‘𝐺) + 𝑧) − (0_g‘𝐺)) = 𝑧)
68	67	mpteq2dva 5247	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) → (𝑧 ∈ 𝑎 ↦ (((0_g‘𝐺) + 𝑧) − (0_g‘𝐺))) = (𝑧 ∈ 𝑎 ↦ 𝑧))
69		mptresid 6048	. . . . . . . . 9 ⊢ ( I ↾ 𝑎) = (𝑧 ∈ 𝑎 ↦ 𝑧)
70	68, 69	eqtr4di 2790	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) → (𝑧 ∈ 𝑎 ↦ (((0_g‘𝐺) + 𝑧) − (0_g‘𝐺))) = ( I ↾ 𝑎))
71	70	rneqd 5935	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) → ran (𝑧 ∈ 𝑎 ↦ (((0_g‘𝐺) + 𝑧) − (0_g‘𝐺))) = ran ( I ↾ 𝑎))
72		rnresi 6071	. . . . . . 7 ⊢ ran ( I ↾ 𝑎) = 𝑎
73	71, 72	eqtrdi 2788	. . . . . 6 ⊢ ((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) → ran (𝑧 ∈ 𝑎 ↦ (((0_g‘𝐺) + 𝑧) − (0_g‘𝐺))) = 𝑎)
74	55, 73	eqtrd 2772	. . . . 5 ⊢ ((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) → ((0_g‘𝐺) ⊕ 𝑎) = 𝑎)
75		ovex 7438	. . . . . . . . . 10 ⊢ ((𝑐 + 𝑧) − 𝑐) ∈ V
76		oveq2 7413	. . . . . . . . . . 11 ⊢ (𝑤 = ((𝑐 + 𝑧) − 𝑐) → (𝑏 + 𝑤) = (𝑏 + ((𝑐 + 𝑧) − 𝑐)))
77	76	oveq1d 7420	. . . . . . . . . 10 ⊢ (𝑤 = ((𝑐 + 𝑧) − 𝑐) → ((𝑏 + 𝑤) − 𝑏) = ((𝑏 + ((𝑐 + 𝑧) − 𝑐)) − 𝑏))
78	75, 77	abrexco 7239	. . . . . . . . 9 ⊢ {𝑢 ∣ ∃𝑤 ∈ {𝑣 ∣ ∃𝑧 ∈ 𝑎 𝑣 = ((𝑐 + 𝑧) − 𝑐)}𝑢 = ((𝑏 + 𝑤) − 𝑏)} = {𝑢 ∣ ∃𝑧 ∈ 𝑎 𝑢 = ((𝑏 + ((𝑐 + 𝑧) − 𝑐)) − 𝑏)}
79		simprr 771	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → 𝑐 ∈ 𝑋)
80		simplr 767	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → 𝑎 ∈ (𝑃 pSyl 𝐺))
81		simpr 485	. . . . . . . . . . . . . . . 16 ⊢ ((𝑥 = 𝑐 ∧ 𝑦 = 𝑎) → 𝑦 = 𝑎)
82		simpl 483	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑥 = 𝑐 ∧ 𝑦 = 𝑎) → 𝑥 = 𝑐)
83	82	oveq1d 7420	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑥 = 𝑐 ∧ 𝑦 = 𝑎) → (𝑥 + 𝑧) = (𝑐 + 𝑧))
84	83, 82	oveq12d 7423	. . . . . . . . . . . . . . . 16 ⊢ ((𝑥 = 𝑐 ∧ 𝑦 = 𝑎) → ((𝑥 + 𝑧) − 𝑥) = ((𝑐 + 𝑧) − 𝑐))
85	81, 84	mpteq12dv 5238	. . . . . . . . . . . . . . 15 ⊢ ((𝑥 = 𝑐 ∧ 𝑦 = 𝑎) → (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) = (𝑧 ∈ 𝑎 ↦ ((𝑐 + 𝑧) − 𝑐)))
86	85	rneqd 5935	. . . . . . . . . . . . . 14 ⊢ ((𝑥 = 𝑐 ∧ 𝑦 = 𝑎) → ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) = ran (𝑧 ∈ 𝑎 ↦ ((𝑐 + 𝑧) − 𝑐)))
87	51	mptex 7221	. . . . . . . . . . . . . . 15 ⊢ (𝑧 ∈ 𝑎 ↦ ((𝑐 + 𝑧) − 𝑐)) ∈ V
88	87	rnex 7899	. . . . . . . . . . . . . 14 ⊢ ran (𝑧 ∈ 𝑎 ↦ ((𝑐 + 𝑧) − 𝑐)) ∈ V
89	86, 37, 88	ovmpoa 7559	. . . . . . . . . . . . 13 ⊢ ((𝑐 ∈ 𝑋 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) → (𝑐 ⊕ 𝑎) = ran (𝑧 ∈ 𝑎 ↦ ((𝑐 + 𝑧) − 𝑐)))
90	79, 80, 89	syl2anc 584	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → (𝑐 ⊕ 𝑎) = ran (𝑧 ∈ 𝑎 ↦ ((𝑐 + 𝑧) − 𝑐)))
91		eqid 2732	. . . . . . . . . . . . 13 ⊢ (𝑧 ∈ 𝑎 ↦ ((𝑐 + 𝑧) − 𝑐)) = (𝑧 ∈ 𝑎 ↦ ((𝑐 + 𝑧) − 𝑐))
92	91	rnmpt 5952	. . . . . . . . . . . 12 ⊢ ran (𝑧 ∈ 𝑎 ↦ ((𝑐 + 𝑧) − 𝑐)) = {𝑣 ∣ ∃𝑧 ∈ 𝑎 𝑣 = ((𝑐 + 𝑧) − 𝑐)}
93	90, 92	eqtrdi 2788	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → (𝑐 ⊕ 𝑎) = {𝑣 ∣ ∃𝑧 ∈ 𝑎 𝑣 = ((𝑐 + 𝑧) − 𝑐)})
94	93	rexeqdv 3326	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → (∃𝑤 ∈ (𝑐 ⊕ 𝑎)𝑢 = ((𝑏 + 𝑤) − 𝑏) ↔ ∃𝑤 ∈ {𝑣 ∣ ∃𝑧 ∈ 𝑎 𝑣 = ((𝑐 + 𝑧) − 𝑐)}𝑢 = ((𝑏 + 𝑤) − 𝑏)))
95	94	abbidv 2801	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → {𝑢 ∣ ∃𝑤 ∈ (𝑐 ⊕ 𝑎)𝑢 = ((𝑏 + 𝑤) − 𝑏)} = {𝑢 ∣ ∃𝑤 ∈ {𝑣 ∣ ∃𝑧 ∈ 𝑎 𝑣 = ((𝑐 + 𝑧) − 𝑐)}𝑢 = ((𝑏 + 𝑤) − 𝑏)})
96	40	adantr 481	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → 𝐺 ∈ Grp)
97	96	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) ∧ 𝑧 ∈ 𝑎) → 𝐺 ∈ Grp)
98		simprl 769	. . . . . . . . . . . . . . . . 17 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → 𝑏 ∈ 𝑋)
99	6, 13	grpcl 18823	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐺 ∈ Grp ∧ 𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋) → (𝑏 + 𝑐) ∈ 𝑋)
100	96, 98, 79, 99	syl3anc 1371	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → (𝑏 + 𝑐) ∈ 𝑋)
101	100	adantr 481	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) ∧ 𝑧 ∈ 𝑎) → (𝑏 + 𝑐) ∈ 𝑋)
102	61	adantlr 713	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) ∧ 𝑧 ∈ 𝑎) → 𝑧 ∈ 𝑋)
103	6, 13	grpcl 18823	. . . . . . . . . . . . . . 15 ⊢ ((𝐺 ∈ Grp ∧ (𝑏 + 𝑐) ∈ 𝑋 ∧ 𝑧 ∈ 𝑋) → ((𝑏 + 𝑐) + 𝑧) ∈ 𝑋)
104	97, 101, 102, 103	syl3anc 1371	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) ∧ 𝑧 ∈ 𝑎) → ((𝑏 + 𝑐) + 𝑧) ∈ 𝑋)
105	79	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) ∧ 𝑧 ∈ 𝑎) → 𝑐 ∈ 𝑋)
106	98	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) ∧ 𝑧 ∈ 𝑎) → 𝑏 ∈ 𝑋)
107	6, 13, 14	grpsubsub4 18912	. . . . . . . . . . . . . 14 ⊢ ((𝐺 ∈ Grp ∧ (((𝑏 + 𝑐) + 𝑧) ∈ 𝑋 ∧ 𝑐 ∈ 𝑋 ∧ 𝑏 ∈ 𝑋)) → ((((𝑏 + 𝑐) + 𝑧) − 𝑐) − 𝑏) = (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐)))
108	97, 104, 105, 106, 107	syl13anc 1372	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) ∧ 𝑧 ∈ 𝑎) → ((((𝑏 + 𝑐) + 𝑧) − 𝑐) − 𝑏) = (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐)))
109	6, 13	grpass 18824	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐺 ∈ Grp ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋 ∧ 𝑧 ∈ 𝑋)) → ((𝑏 + 𝑐) + 𝑧) = (𝑏 + (𝑐 + 𝑧)))
110	97, 106, 105, 102, 109	syl13anc 1372	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) ∧ 𝑧 ∈ 𝑎) → ((𝑏 + 𝑐) + 𝑧) = (𝑏 + (𝑐 + 𝑧)))
111	110	oveq1d 7420	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) ∧ 𝑧 ∈ 𝑎) → (((𝑏 + 𝑐) + 𝑧) − 𝑐) = ((𝑏 + (𝑐 + 𝑧)) − 𝑐))
112	6, 13	grpcl 18823	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐺 ∈ Grp ∧ 𝑐 ∈ 𝑋 ∧ 𝑧 ∈ 𝑋) → (𝑐 + 𝑧) ∈ 𝑋)
113	97, 105, 102, 112	syl3anc 1371	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) ∧ 𝑧 ∈ 𝑎) → (𝑐 + 𝑧) ∈ 𝑋)
114	6, 13, 14	grpaddsubass 18909	. . . . . . . . . . . . . . . 16 ⊢ ((𝐺 ∈ Grp ∧ (𝑏 ∈ 𝑋 ∧ (𝑐 + 𝑧) ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → ((𝑏 + (𝑐 + 𝑧)) − 𝑐) = (𝑏 + ((𝑐 + 𝑧) − 𝑐)))
115	97, 106, 113, 105, 114	syl13anc 1372	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) ∧ 𝑧 ∈ 𝑎) → ((𝑏 + (𝑐 + 𝑧)) − 𝑐) = (𝑏 + ((𝑐 + 𝑧) − 𝑐)))
116	111, 115	eqtrd 2772	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) ∧ 𝑧 ∈ 𝑎) → (((𝑏 + 𝑐) + 𝑧) − 𝑐) = (𝑏 + ((𝑐 + 𝑧) − 𝑐)))
117	116	oveq1d 7420	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) ∧ 𝑧 ∈ 𝑎) → ((((𝑏 + 𝑐) + 𝑧) − 𝑐) − 𝑏) = ((𝑏 + ((𝑐 + 𝑧) − 𝑐)) − 𝑏))
118	108, 117	eqtr3d 2774	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) ∧ 𝑧 ∈ 𝑎) → (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐)) = ((𝑏 + ((𝑐 + 𝑧) − 𝑐)) − 𝑏))
119	118	eqeq2d 2743	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) ∧ 𝑧 ∈ 𝑎) → (𝑢 = (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐)) ↔ 𝑢 = ((𝑏 + ((𝑐 + 𝑧) − 𝑐)) − 𝑏)))
120	119	rexbidva 3176	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → (∃𝑧 ∈ 𝑎 𝑢 = (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐)) ↔ ∃𝑧 ∈ 𝑎 𝑢 = ((𝑏 + ((𝑐 + 𝑧) − 𝑐)) − 𝑏)))
121	120	abbidv 2801	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → {𝑢 ∣ ∃𝑧 ∈ 𝑎 𝑢 = (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐))} = {𝑢 ∣ ∃𝑧 ∈ 𝑎 𝑢 = ((𝑏 + ((𝑐 + 𝑧) − 𝑐)) − 𝑏)})
122	78, 95, 121	3eqtr4a 2798	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → {𝑢 ∣ ∃𝑤 ∈ (𝑐 ⊕ 𝑎)𝑢 = ((𝑏 + 𝑤) − 𝑏)} = {𝑢 ∣ ∃𝑧 ∈ 𝑎 𝑢 = (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐))})
123		eqid 2732	. . . . . . . . 9 ⊢ (𝑤 ∈ (𝑐 ⊕ 𝑎) ↦ ((𝑏 + 𝑤) − 𝑏)) = (𝑤 ∈ (𝑐 ⊕ 𝑎) ↦ ((𝑏 + 𝑤) − 𝑏))
124	123	rnmpt 5952	. . . . . . . 8 ⊢ ran (𝑤 ∈ (𝑐 ⊕ 𝑎) ↦ ((𝑏 + 𝑤) − 𝑏)) = {𝑢 ∣ ∃𝑤 ∈ (𝑐 ⊕ 𝑎)𝑢 = ((𝑏 + 𝑤) − 𝑏)}
125		eqid 2732	. . . . . . . . 9 ⊢ (𝑧 ∈ 𝑎 ↦ (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐))) = (𝑧 ∈ 𝑎 ↦ (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐)))
126	125	rnmpt 5952	. . . . . . . 8 ⊢ ran (𝑧 ∈ 𝑎 ↦ (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐))) = {𝑢 ∣ ∃𝑧 ∈ 𝑎 𝑢 = (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐))}
127	122, 124, 126	3eqtr4g 2797	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → ran (𝑤 ∈ (𝑐 ⊕ 𝑎) ↦ ((𝑏 + 𝑤) − 𝑏)) = ran (𝑧 ∈ 𝑎 ↦ (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐))))
128	39	ad2antrr 724	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → ⊕ :(𝑋 × (𝑃 pSyl 𝐺))⟶(𝑃 pSyl 𝐺))
129	128, 79, 80	fovcdmd 7575	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → (𝑐 ⊕ 𝑎) ∈ (𝑃 pSyl 𝐺))
130		simpr 485	. . . . . . . . . . . 12 ⊢ ((𝑥 = 𝑏 ∧ 𝑦 = (𝑐 ⊕ 𝑎)) → 𝑦 = (𝑐 ⊕ 𝑎))
131		simpl 483	. . . . . . . . . . . . . 14 ⊢ ((𝑥 = 𝑏 ∧ 𝑦 = (𝑐 ⊕ 𝑎)) → 𝑥 = 𝑏)
132	131	oveq1d 7420	. . . . . . . . . . . . 13 ⊢ ((𝑥 = 𝑏 ∧ 𝑦 = (𝑐 ⊕ 𝑎)) → (𝑥 + 𝑧) = (𝑏 + 𝑧))
133	132, 131	oveq12d 7423	. . . . . . . . . . . 12 ⊢ ((𝑥 = 𝑏 ∧ 𝑦 = (𝑐 ⊕ 𝑎)) → ((𝑥 + 𝑧) − 𝑥) = ((𝑏 + 𝑧) − 𝑏))
134	130, 133	mpteq12dv 5238	. . . . . . . . . . 11 ⊢ ((𝑥 = 𝑏 ∧ 𝑦 = (𝑐 ⊕ 𝑎)) → (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) = (𝑧 ∈ (𝑐 ⊕ 𝑎) ↦ ((𝑏 + 𝑧) − 𝑏)))
135		oveq2 7413	. . . . . . . . . . . . 13 ⊢ (𝑧 = 𝑤 → (𝑏 + 𝑧) = (𝑏 + 𝑤))
136	135	oveq1d 7420	. . . . . . . . . . . 12 ⊢ (𝑧 = 𝑤 → ((𝑏 + 𝑧) − 𝑏) = ((𝑏 + 𝑤) − 𝑏))
137	136	cbvmptv 5260	. . . . . . . . . . 11 ⊢ (𝑧 ∈ (𝑐 ⊕ 𝑎) ↦ ((𝑏 + 𝑧) − 𝑏)) = (𝑤 ∈ (𝑐 ⊕ 𝑎) ↦ ((𝑏 + 𝑤) − 𝑏))
138	134, 137	eqtrdi 2788	. . . . . . . . . 10 ⊢ ((𝑥 = 𝑏 ∧ 𝑦 = (𝑐 ⊕ 𝑎)) → (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) = (𝑤 ∈ (𝑐 ⊕ 𝑎) ↦ ((𝑏 + 𝑤) − 𝑏)))
139	138	rneqd 5935	. . . . . . . . 9 ⊢ ((𝑥 = 𝑏 ∧ 𝑦 = (𝑐 ⊕ 𝑎)) → ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) = ran (𝑤 ∈ (𝑐 ⊕ 𝑎) ↦ ((𝑏 + 𝑤) − 𝑏)))
140		ovex 7438	. . . . . . . . . . 11 ⊢ (𝑐 ⊕ 𝑎) ∈ V
141	140	mptex 7221	. . . . . . . . . 10 ⊢ (𝑤 ∈ (𝑐 ⊕ 𝑎) ↦ ((𝑏 + 𝑤) − 𝑏)) ∈ V
142	141	rnex 7899	. . . . . . . . 9 ⊢ ran (𝑤 ∈ (𝑐 ⊕ 𝑎) ↦ ((𝑏 + 𝑤) − 𝑏)) ∈ V
143	139, 37, 142	ovmpoa 7559	. . . . . . . 8 ⊢ ((𝑏 ∈ 𝑋 ∧ (𝑐 ⊕ 𝑎) ∈ (𝑃 pSyl 𝐺)) → (𝑏 ⊕ (𝑐 ⊕ 𝑎)) = ran (𝑤 ∈ (𝑐 ⊕ 𝑎) ↦ ((𝑏 + 𝑤) − 𝑏)))
144	98, 129, 143	syl2anc 584	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → (𝑏 ⊕ (𝑐 ⊕ 𝑎)) = ran (𝑤 ∈ (𝑐 ⊕ 𝑎) ↦ ((𝑏 + 𝑤) − 𝑏)))
145		simpr 485	. . . . . . . . . . 11 ⊢ ((𝑥 = (𝑏 + 𝑐) ∧ 𝑦 = 𝑎) → 𝑦 = 𝑎)
146		simpl 483	. . . . . . . . . . . . 13 ⊢ ((𝑥 = (𝑏 + 𝑐) ∧ 𝑦 = 𝑎) → 𝑥 = (𝑏 + 𝑐))
147	146	oveq1d 7420	. . . . . . . . . . . 12 ⊢ ((𝑥 = (𝑏 + 𝑐) ∧ 𝑦 = 𝑎) → (𝑥 + 𝑧) = ((𝑏 + 𝑐) + 𝑧))
148	147, 146	oveq12d 7423	. . . . . . . . . . 11 ⊢ ((𝑥 = (𝑏 + 𝑐) ∧ 𝑦 = 𝑎) → ((𝑥 + 𝑧) − 𝑥) = (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐)))
149	145, 148	mpteq12dv 5238	. . . . . . . . . 10 ⊢ ((𝑥 = (𝑏 + 𝑐) ∧ 𝑦 = 𝑎) → (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) = (𝑧 ∈ 𝑎 ↦ (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐))))
150	149	rneqd 5935	. . . . . . . . 9 ⊢ ((𝑥 = (𝑏 + 𝑐) ∧ 𝑦 = 𝑎) → ran (𝑧 ∈ 𝑦 ↦ ((𝑥 + 𝑧) − 𝑥)) = ran (𝑧 ∈ 𝑎 ↦ (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐))))
151	51	mptex 7221	. . . . . . . . . 10 ⊢ (𝑧 ∈ 𝑎 ↦ (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐))) ∈ V
152	151	rnex 7899	. . . . . . . . 9 ⊢ ran (𝑧 ∈ 𝑎 ↦ (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐))) ∈ V
153	150, 37, 152	ovmpoa 7559	. . . . . . . 8 ⊢ (((𝑏 + 𝑐) ∈ 𝑋 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) → ((𝑏 + 𝑐) ⊕ 𝑎) = ran (𝑧 ∈ 𝑎 ↦ (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐))))
154	100, 80, 153	syl2anc 584	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → ((𝑏 + 𝑐) ⊕ 𝑎) = ran (𝑧 ∈ 𝑎 ↦ (((𝑏 + 𝑐) + 𝑧) − (𝑏 + 𝑐))))
155	127, 144, 154	3eqtr4rd 2783	. . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) ∧ (𝑏 ∈ 𝑋 ∧ 𝑐 ∈ 𝑋)) → ((𝑏 + 𝑐) ⊕ 𝑎) = (𝑏 ⊕ (𝑐 ⊕ 𝑎)))
156	155	ralrimivva 3200	. . . . 5 ⊢ ((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) → ∀𝑏 ∈ 𝑋 ∀𝑐 ∈ 𝑋 ((𝑏 + 𝑐) ⊕ 𝑎) = (𝑏 ⊕ (𝑐 ⊕ 𝑎)))
157	74, 156	jca 512	. . . 4 ⊢ ((𝜑 ∧ 𝑎 ∈ (𝑃 pSyl 𝐺)) → (((0_g‘𝐺) ⊕ 𝑎) = 𝑎 ∧ ∀𝑏 ∈ 𝑋 ∀𝑐 ∈ 𝑋 ((𝑏 + 𝑐) ⊕ 𝑎) = (𝑏 ⊕ (𝑐 ⊕ 𝑎))))
158	157	ralrimiva 3146	. . 3 ⊢ (𝜑 → ∀𝑎 ∈ (𝑃 pSyl 𝐺)(((0_g‘𝐺) ⊕ 𝑎) = 𝑎 ∧ ∀𝑏 ∈ 𝑋 ∀𝑐 ∈ 𝑋 ((𝑏 + 𝑐) ⊕ 𝑎) = (𝑏 ⊕ (𝑐 ⊕ 𝑎))))
159	39, 158	jca 512	. 2 ⊢ (𝜑 → ( ⊕ :(𝑋 × (𝑃 pSyl 𝐺))⟶(𝑃 pSyl 𝐺) ∧ ∀𝑎 ∈ (𝑃 pSyl 𝐺)(((0_g‘𝐺) ⊕ 𝑎) = 𝑎 ∧ ∀𝑏 ∈ 𝑋 ∀𝑐 ∈ 𝑋 ((𝑏 + 𝑐) ⊕ 𝑎) = (𝑏 ⊕ (𝑐 ⊕ 𝑎)))))
160	6, 13, 41	isga 19149	. 2 ⊢ ( ⊕ ∈ (𝐺 GrpAct (𝑃 pSyl 𝐺)) ↔ ((𝐺 ∈ Grp ∧ (𝑃 pSyl 𝐺) ∈ V) ∧ ( ⊕ :(𝑋 × (𝑃 pSyl 𝐺))⟶(𝑃 pSyl 𝐺) ∧ ∀𝑎 ∈ (𝑃 pSyl 𝐺)(((0_g‘𝐺) ⊕ 𝑎) = 𝑎 ∧ ∀𝑏 ∈ 𝑋 ∀𝑐 ∈ 𝑋 ((𝑏 + 𝑐) ⊕ 𝑎) = (𝑏 ⊕ (𝑐 ⊕ 𝑎))))))
161	3, 159, 160	sylanbrc 583	1 ⊢ (𝜑 → ⊕ ∈ (𝐺 GrpAct (𝑃 pSyl 𝐺)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 = wceq 1541 ∈ wcel 2106 {cab 2709 ∀wral 3061 ∃wrex 3070 Vcvv 3474 ⊆ wss 3947 class class class wbr 5147 ↦ cmpt 5230 I cid 5572 × cxp 5673 ran crn 5676 ↾ cres 5677 ⟶wf 6536 ‘cfv 6540 (class class class)co 7405 ∈ cmpo 7407 ≈ cen 8932 Fincfn 8935 ↑cexp 14023 ♯chash 14286 ℙcprime 16604 pCnt cpc 16765 Basecbs 17140 +_gcplusg 17193 0_gc0g 17381 Grpcgrp 18815 -_gcsg 18817 SubGrpcsubg 18994 GrpAct cga 19147 pSyl cslw 19389

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2703 ax-rep 5284 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7721 ax-inf2 9632 ax-cnex 11162 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-pre-mulgt0 11183 ax-pre-sup 11184

This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3376 df-reu 3377 df-rab 3433 df-v 3476 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4322 df-if 4528 df-pw 4603 df-sn 4628 df-pr 4630 df-op 4634 df-uni 4908 df-int 4950 df-iun 4998 df-disj 5113 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5573 df-eprel 5579 df-po 5587 df-so 5588 df-fr 5630 df-se 5631 df-we 5632 df-xp 5681 df-rel 5682 df-cnv 5683 df-co 5684 df-dm 5685 df-rn 5686 df-res 5687 df-ima 5688 df-pred 6297 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6492 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-isom 6549 df-riota 7361 df-ov 7408 df-oprab 7409 df-mpo 7410 df-om 7852 df-1st 7971 df-2nd 7972 df-frecs 8262 df-wrecs 8293 df-recs 8367 df-rdg 8406 df-1o 8462 df-2o 8463 df-oadd 8466 df-omul 8467 df-er 8699 df-ec 8701 df-qs 8705 df-map 8818 df-en 8936 df-dom 8937 df-sdom 8938 df-fin 8939 df-sup 9433 df-inf 9434 df-oi 9501 df-dju 9892 df-card 9930 df-acn 9933 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-sub 11442 df-neg 11443 df-div 11868 df-nn 12209 df-2 12271 df-3 12272 df-n0 12469 df-xnn0 12541 df-z 12555 df-uz 12819 df-q 12929 df-rp 12971 df-fz 13481 df-fzo 13624 df-fl 13753 df-mod 13831 df-seq 13963 df-exp 14024 df-fac 14230 df-bc 14259 df-hash 14287 df-cj 15042 df-re 15043 df-im 15044 df-sqrt 15178 df-abs 15179 df-clim 15428 df-sum 15629 df-dvds 16194 df-gcd 16432 df-prm 16605 df-pc 16766 df-sets 17093 df-slot 17111 df-ndx 17123 df-base 17141 df-ress 17170 df-plusg 17206 df-0g 17383 df-mgm 18557 df-sgrp 18606 df-mnd 18622 df-submnd 18668 df-grp 18818 df-minusg 18819 df-sbg 18820 df-mulg 18945 df-subg 18997 df-eqg 18999 df-ghm 19084 df-ga 19148 df-od 19390 df-pgp 19392 df-slw 19393

This theorem is referenced by: sylow3lem3 19491 sylow3lem5 19493

W3C validator