Theorem rngcinvALTV 44271

Description: An inverse in the category of non-unital rings is the converse operation. (Contributed by AV, 28-Feb-2020.) (New usage is discouraged.)

Hypotheses

Ref	Expression
rngcsectALTV.c	⊢ 𝐶 = (RngCatALTV‘𝑈)
rngcsectALTV.b	⊢ 𝐵 = (Base‘𝐶)
rngcsectALTV.u	⊢ (𝜑 → 𝑈 ∈ 𝑉)
rngcsectALTV.x	⊢ (𝜑 → 𝑋 ∈ 𝐵)
rngcsectALTV.y	⊢ (𝜑 → 𝑌 ∈ 𝐵)
rngcinvALTV.n	⊢ 𝑁 = (Inv‘𝐶)

Assertion

Ref	Expression
rngcinvALTV	⊢ (𝜑 → (𝐹(𝑋𝑁𝑌)𝐺 ↔ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)))

Proof of Theorem rngcinvALTV

Step	Hyp	Ref	Expression
1		rngcsectALTV.b	. . 3 ⊢ 𝐵 = (Base‘𝐶)
2		rngcinvALTV.n	. . 3 ⊢ 𝑁 = (Inv‘𝐶)
3		rngcsectALTV.u	. . . 4 ⊢ (𝜑 → 𝑈 ∈ 𝑉)
4		rngcsectALTV.c	. . . . 5 ⊢ 𝐶 = (RngCatALTV‘𝑈)
5	4	rngccatALTV 44268	. . . 4 ⊢ (𝑈 ∈ 𝑉 → 𝐶 ∈ Cat)
6	3, 5	syl 17	. . 3 ⊢ (𝜑 → 𝐶 ∈ Cat)
7		rngcsectALTV.x	. . 3 ⊢ (𝜑 → 𝑋 ∈ 𝐵)
8		rngcsectALTV.y	. . 3 ⊢ (𝜑 → 𝑌 ∈ 𝐵)
9		eqid 2823	. . 3 ⊢ (Sect‘𝐶) = (Sect‘𝐶)
10	1, 2, 6, 7, 8, 9	isinv 17032	. 2 ⊢ (𝜑 → (𝐹(𝑋𝑁𝑌)𝐺 ↔ (𝐹(𝑋(Sect‘𝐶)𝑌)𝐺 ∧ 𝐺(𝑌(Sect‘𝐶)𝑋)𝐹)))
11		eqid 2823	. . . . . 6 ⊢ (Base‘𝑋) = (Base‘𝑋)
12	4, 1, 3, 7, 8, 11, 9	rngcsectALTV 44270	. . . . 5 ⊢ (𝜑 → (𝐹(𝑋(Sect‘𝐶)𝑌)𝐺 ↔ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋)))))
13		df-3an 1085	. . . . 5 ⊢ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ↔ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))))
14	12, 13	syl6bb 289	. . . 4 ⊢ (𝜑 → (𝐹(𝑋(Sect‘𝐶)𝑌)𝐺 ↔ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋)))))
15		eqid 2823	. . . . . 6 ⊢ (Base‘𝑌) = (Base‘𝑌)
16	4, 1, 3, 8, 7, 15, 9	rngcsectALTV 44270	. . . . 5 ⊢ (𝜑 → (𝐺(𝑌(Sect‘𝐶)𝑋)𝐹 ↔ (𝐺 ∈ (𝑌 RngHomo 𝑋) ∧ 𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)))))
17		3ancoma 1094	. . . . . 6 ⊢ ((𝐺 ∈ (𝑌 RngHomo 𝑋) ∧ 𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌))) ↔ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌))))
18		df-3an 1085	. . . . . 6 ⊢ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌))) ↔ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌))))
19	17, 18	bitri 277	. . . . 5 ⊢ ((𝐺 ∈ (𝑌 RngHomo 𝑋) ∧ 𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌))) ↔ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌))))
20	16, 19	syl6bb 289	. . . 4 ⊢ (𝜑 → (𝐺(𝑌(Sect‘𝐶)𝑋)𝐹 ↔ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)))))
21	14, 20	anbi12d 632	. . 3 ⊢ (𝜑 → ((𝐹(𝑋(Sect‘𝐶)𝑌)𝐺 ∧ 𝐺(𝑌(Sect‘𝐶)𝑋)𝐹) ↔ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌))))))
22		anandi 674	. . 3 ⊢ ((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)))) ↔ ((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) ∧ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)))))
23	21, 22	syl6bb 289	. 2 ⊢ (𝜑 → ((𝐹(𝑋(Sect‘𝐶)𝑌)𝐺 ∧ 𝐺(𝑌(Sect‘𝐶)𝑋)𝐹) ↔ ((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) ∧ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌))))))
24		simplrl 775	. . . . . 6 ⊢ (((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) ∧ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)))) → 𝐹 ∈ (𝑋 RngHomo 𝑌))
25	24	adantl 484	. . . . 5 ⊢ ((𝜑 ∧ ((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) ∧ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌))))) → 𝐹 ∈ (𝑋 RngHomo 𝑌))
26	11, 15	rnghmf 44177	. . . . . . . . . 10 ⊢ (𝐹 ∈ (𝑋 RngHomo 𝑌) → 𝐹:(Base‘𝑋)⟶(Base‘𝑌))
27	15, 11	rnghmf 44177	. . . . . . . . . 10 ⊢ (𝐺 ∈ (𝑌 RngHomo 𝑋) → 𝐺:(Base‘𝑌)⟶(Base‘𝑋))
28	26, 27	anim12i 614	. . . . . . . . 9 ⊢ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) → (𝐹:(Base‘𝑋)⟶(Base‘𝑌) ∧ 𝐺:(Base‘𝑌)⟶(Base‘𝑋)))
29	28	ad2antlr 725	. . . . . . . 8 ⊢ (((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) ∧ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)))) → (𝐹:(Base‘𝑋)⟶(Base‘𝑌) ∧ 𝐺:(Base‘𝑌)⟶(Base‘𝑋)))
30		simpr 487	. . . . . . . . 9 ⊢ ((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌))) → (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)))
31	30	adantl 484	. . . . . . . 8 ⊢ (((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) ∧ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)))) → (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)))
32		simpr 487	. . . . . . . . 9 ⊢ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) → (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋)))
33	32	ad2antrl 726	. . . . . . . 8 ⊢ (((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) ∧ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)))) → (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋)))
34	29, 31, 33	jca32 518	. . . . . . 7 ⊢ (((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) ∧ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)))) → ((𝐹:(Base‘𝑋)⟶(Base‘𝑌) ∧ 𝐺:(Base‘𝑌)⟶(Base‘𝑋)) ∧ ((𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋)))))
35	34	adantl 484	. . . . . 6 ⊢ ((𝜑 ∧ ((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) ∧ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌))))) → ((𝐹:(Base‘𝑋)⟶(Base‘𝑌) ∧ 𝐺:(Base‘𝑌)⟶(Base‘𝑋)) ∧ ((𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋)))))
36		fcof1o 7054	. . . . . . 7 ⊢ (((𝐹:(Base‘𝑋)⟶(Base‘𝑌) ∧ 𝐺:(Base‘𝑌)⟶(Base‘𝑋)) ∧ ((𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋)))) → (𝐹:(Base‘𝑋)–1-1-onto→(Base‘𝑌) ∧ ◡𝐹 = 𝐺))
37		eqcom 2830	. . . . . . . 8 ⊢ (◡𝐹 = 𝐺 ↔ 𝐺 = ◡𝐹)
38	37	anbi2i 624	. . . . . . 7 ⊢ ((𝐹:(Base‘𝑋)–1-1-onto→(Base‘𝑌) ∧ ◡𝐹 = 𝐺) ↔ (𝐹:(Base‘𝑋)–1-1-onto→(Base‘𝑌) ∧ 𝐺 = ◡𝐹))
39	36, 38	sylib 220	. . . . . 6 ⊢ (((𝐹:(Base‘𝑋)⟶(Base‘𝑌) ∧ 𝐺:(Base‘𝑌)⟶(Base‘𝑋)) ∧ ((𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋)))) → (𝐹:(Base‘𝑋)–1-1-onto→(Base‘𝑌) ∧ 𝐺 = ◡𝐹))
40	35, 39	syl 17	. . . . 5 ⊢ ((𝜑 ∧ ((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) ∧ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌))))) → (𝐹:(Base‘𝑋)–1-1-onto→(Base‘𝑌) ∧ 𝐺 = ◡𝐹))
41		anass 471	. . . . 5 ⊢ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐹:(Base‘𝑋)–1-1-onto→(Base‘𝑌)) ∧ 𝐺 = ◡𝐹) ↔ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ (𝐹:(Base‘𝑋)–1-1-onto→(Base‘𝑌) ∧ 𝐺 = ◡𝐹)))
42	25, 40, 41	sylanbrc 585	. . . 4 ⊢ ((𝜑 ∧ ((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) ∧ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌))))) → ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐹:(Base‘𝑋)–1-1-onto→(Base‘𝑌)) ∧ 𝐺 = ◡𝐹))
43	11, 15	isrngim 44182	. . . . . . 7 ⊢ ((𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝐹 ∈ (𝑋 RngIsom 𝑌) ↔ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐹:(Base‘𝑋)–1-1-onto→(Base‘𝑌))))
44	7, 8, 43	syl2anc 586	. . . . . 6 ⊢ (𝜑 → (𝐹 ∈ (𝑋 RngIsom 𝑌) ↔ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐹:(Base‘𝑋)–1-1-onto→(Base‘𝑌))))
45	44	anbi1d 631	. . . . 5 ⊢ (𝜑 → ((𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹) ↔ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐹:(Base‘𝑋)–1-1-onto→(Base‘𝑌)) ∧ 𝐺 = ◡𝐹)))
46	45	adantr 483	. . . 4 ⊢ ((𝜑 ∧ ((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) ∧ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌))))) → ((𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹) ↔ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐹:(Base‘𝑋)–1-1-onto→(Base‘𝑌)) ∧ 𝐺 = ◡𝐹)))
47	42, 46	mpbird 259	. . 3 ⊢ ((𝜑 ∧ ((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) ∧ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌))))) → (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹))
48	11, 15	rngimrnghm 44184	. . . . . 6 ⊢ (𝐹 ∈ (𝑋 RngIsom 𝑌) → 𝐹 ∈ (𝑋 RngHomo 𝑌))
49	48	ad2antrl 726	. . . . 5 ⊢ ((𝜑 ∧ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)) → 𝐹 ∈ (𝑋 RngHomo 𝑌))
50		isrngisom 44174	. . . . . . . . . . 11 ⊢ ((𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝐹 ∈ (𝑋 RngIsom 𝑌) ↔ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ ◡𝐹 ∈ (𝑌 RngHomo 𝑋))))
51	7, 8, 50	syl2anc 586	. . . . . . . . . 10 ⊢ (𝜑 → (𝐹 ∈ (𝑋 RngIsom 𝑌) ↔ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ ◡𝐹 ∈ (𝑌 RngHomo 𝑋))))
52		eleq1 2902	. . . . . . . . . . . 12 ⊢ (◡𝐹 = 𝐺 → (◡𝐹 ∈ (𝑌 RngHomo 𝑋) ↔ 𝐺 ∈ (𝑌 RngHomo 𝑋)))
53	52	eqcoms 2831	. . . . . . . . . . 11 ⊢ (𝐺 = ◡𝐹 → (◡𝐹 ∈ (𝑌 RngHomo 𝑋) ↔ 𝐺 ∈ (𝑌 RngHomo 𝑋)))
54	53	anbi2d 630	. . . . . . . . . 10 ⊢ (𝐺 = ◡𝐹 → ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ ◡𝐹 ∈ (𝑌 RngHomo 𝑋)) ↔ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))))
55	51, 54	sylan9bbr 513	. . . . . . . . 9 ⊢ ((𝐺 = ◡𝐹 ∧ 𝜑) → (𝐹 ∈ (𝑋 RngIsom 𝑌) ↔ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))))
56		simpr 487	. . . . . . . . 9 ⊢ ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) → 𝐺 ∈ (𝑌 RngHomo 𝑋))
57	55, 56	syl6bi 255	. . . . . . . 8 ⊢ ((𝐺 = ◡𝐹 ∧ 𝜑) → (𝐹 ∈ (𝑋 RngIsom 𝑌) → 𝐺 ∈ (𝑌 RngHomo 𝑋)))
58	57	com12 32	. . . . . . 7 ⊢ (𝐹 ∈ (𝑋 RngIsom 𝑌) → ((𝐺 = ◡𝐹 ∧ 𝜑) → 𝐺 ∈ (𝑌 RngHomo 𝑋)))
59	58	expdimp 455	. . . . . 6 ⊢ ((𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹) → (𝜑 → 𝐺 ∈ (𝑌 RngHomo 𝑋)))
60	59	impcom 410	. . . . 5 ⊢ ((𝜑 ∧ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)) → 𝐺 ∈ (𝑌 RngHomo 𝑋))
61		coeq1 5730	. . . . . . 7 ⊢ (𝐺 = ◡𝐹 → (𝐺 ∘ 𝐹) = (◡𝐹 ∘ 𝐹))
62	61	ad2antll 727	. . . . . 6 ⊢ ((𝜑 ∧ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)) → (𝐺 ∘ 𝐹) = (◡𝐹 ∘ 𝐹))
63	11, 15	rngimf1o 44183	. . . . . . . 8 ⊢ (𝐹 ∈ (𝑋 RngIsom 𝑌) → 𝐹:(Base‘𝑋)–1-1-onto→(Base‘𝑌))
64	63	ad2antrl 726	. . . . . . 7 ⊢ ((𝜑 ∧ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)) → 𝐹:(Base‘𝑋)–1-1-onto→(Base‘𝑌))
65		f1ococnv1 6645	. . . . . . 7 ⊢ (𝐹:(Base‘𝑋)–1-1-onto→(Base‘𝑌) → (◡𝐹 ∘ 𝐹) = ( I ↾ (Base‘𝑋)))
66	64, 65	syl 17	. . . . . 6 ⊢ ((𝜑 ∧ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)) → (◡𝐹 ∘ 𝐹) = ( I ↾ (Base‘𝑋)))
67	62, 66	eqtrd 2858	. . . . 5 ⊢ ((𝜑 ∧ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)) → (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋)))
68	49, 60, 67	jca31 517	. . . 4 ⊢ ((𝜑 ∧ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)) → ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))))
69	51	biimpcd 251	. . . . . . 7 ⊢ (𝐹 ∈ (𝑋 RngIsom 𝑌) → (𝜑 → (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ ◡𝐹 ∈ (𝑌 RngHomo 𝑋))))
70	69	adantr 483	. . . . . 6 ⊢ ((𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹) → (𝜑 → (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ ◡𝐹 ∈ (𝑌 RngHomo 𝑋))))
71	70	impcom 410	. . . . 5 ⊢ ((𝜑 ∧ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)) → (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ ◡𝐹 ∈ (𝑌 RngHomo 𝑋)))
72		eleq1 2902	. . . . . . 7 ⊢ (𝐺 = ◡𝐹 → (𝐺 ∈ (𝑌 RngHomo 𝑋) ↔ ◡𝐹 ∈ (𝑌 RngHomo 𝑋)))
73	72	ad2antll 727	. . . . . 6 ⊢ ((𝜑 ∧ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)) → (𝐺 ∈ (𝑌 RngHomo 𝑋) ↔ ◡𝐹 ∈ (𝑌 RngHomo 𝑋)))
74	73	anbi2d 630	. . . . 5 ⊢ ((𝜑 ∧ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)) → ((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ↔ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ ◡𝐹 ∈ (𝑌 RngHomo 𝑋))))
75	71, 74	mpbird 259	. . . 4 ⊢ ((𝜑 ∧ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)) → (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)))
76		coeq2 5731	. . . . . . 7 ⊢ (𝐺 = ◡𝐹 → (𝐹 ∘ 𝐺) = (𝐹 ∘ ◡𝐹))
77	76	ad2antll 727	. . . . . 6 ⊢ ((𝜑 ∧ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)) → (𝐹 ∘ 𝐺) = (𝐹 ∘ ◡𝐹))
78		f1ococnv2 6643	. . . . . . 7 ⊢ (𝐹:(Base‘𝑋)–1-1-onto→(Base‘𝑌) → (𝐹 ∘ ◡𝐹) = ( I ↾ (Base‘𝑌)))
79	64, 78	syl 17	. . . . . 6 ⊢ ((𝜑 ∧ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)) → (𝐹 ∘ ◡𝐹) = ( I ↾ (Base‘𝑌)))
80	77, 79	eqtrd 2858	. . . . 5 ⊢ ((𝜑 ∧ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)) → (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)))
81	75, 67, 80	jca31 517	. . . 4 ⊢ ((𝜑 ∧ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)) → (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌))))
82	68, 75, 81	jca31 517	. . 3 ⊢ ((𝜑 ∧ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)) → ((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) ∧ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)))))
83	47, 82	impbida 799	. 2 ⊢ (𝜑 → (((((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋))) ∧ (((𝐹 ∈ (𝑋 RngHomo 𝑌) ∧ 𝐺 ∈ (𝑌 RngHomo 𝑋)) ∧ (𝐺 ∘ 𝐹) = ( I ↾ (Base‘𝑋))) ∧ (𝐹 ∘ 𝐺) = ( I ↾ (Base‘𝑌)))) ↔ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)))
84	10, 23, 83	3bitrd 307	1 ⊢ (𝜑 → (𝐹(𝑋𝑁𝑌)𝐺 ↔ (𝐹 ∈ (𝑋 RngIsom 𝑌) ∧ 𝐺 = ◡𝐹)))

Syntax hints:   → wi 4   ↔ wb 208   ∧ wa 398   ∧ w3a 1083   = wceq 1537   ∈ wcel 2114   class class class wbr 5068   I cid 5461  ^◡ccnv 5556   ↾ cres 5559   ∘ ccom 5561  ⟶wf 6353  –1-1-onto→wf1o 6356  ‘cfv 6357  (class class class)co 7158  Basecbs 16485  Catccat 16937  Sectcsect 17016  Invcinv 17017   RngHomo crngh 44163   RngIsom crngs 44164  RngCatALTVcrngcALTV 44236

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 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2177  ax-ext 2795  ax-rep 5192  ax-sep 5205  ax-nul 5212  ax-pow 5268  ax-pr 5332  ax-un 7463  ax-cnex 10595  ax-resscn 10596  ax-1cn 10597  ax-icn 10598  ax-addcl 10599  ax-addrcl 10600  ax-mulcl 10601  ax-mulrcl 10602  ax-mulcom 10603  ax-addass 10604  ax-mulass 10605  ax-distr 10606  ax-i2m1 10607  ax-1ne0 10608  ax-1rid 10609  ax-rnegex 10610  ax-rrecex 10611  ax-cnre 10612  ax-pre-lttri 10613  ax-pre-lttrn 10614  ax-pre-ltadd 10615  ax-pre-mulgt0 10616

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1084  df-3an 1085  df-tru 1540  df-ex 1781  df-nf 1785  df-sb 2070  df-mo 2622  df-eu 2654  df-clab 2802  df-cleq 2816  df-clel 2895  df-nfc 2965  df-ne 3019  df-nel 3126  df-ral 3145  df-rex 3146  df-reu 3147  df-rmo 3148  df-rab 3149  df-v 3498  df-sbc 3775  df-csb 3886  df-dif 3941  df-un 3943  df-in 3945  df-ss 3954  df-pss 3956  df-nul 4294  df-if 4470  df-pw 4543  df-sn 4570  df-pr 4572  df-tp 4574  df-op 4576  df-uni 4841  df-int 4879  df-iun 4923  df-br 5069  df-opab 5131  df-mpt 5149  df-tr 5175  df-id 5462  df-eprel 5467  df-po 5476  df-so 5477  df-fr 5516  df-we 5518  df-xp 5563  df-rel 5564  df-cnv 5565  df-co 5566  df-dm 5567  df-rn 5568  df-res 5569  df-ima 5570  df-pred 6150  df-ord 6196  df-on 6197  df-lim 6198  df-suc 6199  df-iota 6316  df-fun 6359  df-fn 6360  df-f 6361  df-f1 6362  df-fo 6363  df-f1o 6364  df-fv 6365  df-riota 7116  df-ov 7161  df-oprab 7162  df-mpo 7163  df-om 7583  df-1st 7691  df-2nd 7692  df-wrecs 7949  df-recs 8010  df-rdg 8048  df-1o 8104  df-oadd 8108  df-er 8291  df-map 8410  df-en 8512  df-dom 8513  df-sdom 8514  df-fin 8515  df-pnf 10679  df-mnf 10680  df-xr 10681  df-ltxr 10682  df-le 10683  df-sub 10874  df-neg 10875  df-nn 11641  df-2 11703  df-3 11704  df-4 11705  df-5 11706  df-6 11707  df-7 11708  df-8 11709  df-9 11710  df-n0 11901  df-z 11985  df-dec 12102  df-uz 12247  df-fz 12896  df-struct 16487  df-ndx 16488  df-slot 16489  df-base 16491  df-sets 16492  df-plusg 16580  df-hom 16591  df-cco 16592  df-0g 16717  df-cat 16941  df-cid 16942  df-sect 17019  df-inv 17020  df-mgm 17854  df-sgrp 17903  df-mnd 17914  df-mhm 17958  df-grp 18108  df-ghm 18358  df-abl 18911  df-mgp 19242  df-mgmhm 44053  df-rng0 44153  df-rnghomo 44165  df-rngisom 44166  df-rngcALTV 44238

This theorem is referenced by:  rngcisoALTV  44272