f1oiso2 - Metamath Proof Explorer

	Metamath Proof Explorer		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > f1oiso2		Structured version Visualization version GIF version

Theorem f1oiso2 7216

Description: Any one-to-one onto function determines an isomorphism with an induced relation 𝑆. (Contributed by Mario Carneiro, 9-Mar-2013.)

**Hypothesis**
Ref	Expression
f1oiso2.1	⊢ 𝑆 = {⟨𝑥, 𝑦⟩ ∣ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦))}

**Assertion**
Ref	Expression
f1oiso2	⊢ (𝐻:𝐴–1-1-onto→𝐵 → 𝐻 Isom 𝑅, 𝑆 (𝐴, 𝐵))

Distinct variable groups: 𝑥,𝐴,𝑦 𝑥,𝐵,𝑦 𝑥,𝐻,𝑦 𝑥,𝑅,𝑦 Allowed substitution hints: 𝑆(𝑥,𝑦)

Proof of Theorem f1oiso2 Dummy variables 𝑤 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		f1oiso2.1	. . 3 ⊢ 𝑆 = {⟨𝑥, 𝑦⟩ ∣ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦))}
2		f1ocnvdm 7150	. . . . . . . . 9 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ 𝑥 ∈ 𝐵) → (^◡𝐻‘𝑥) ∈ 𝐴)
3	2	adantrr 713	. . . . . . . 8 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵)) → (^◡𝐻‘𝑥) ∈ 𝐴)
4	3	3adant3 1130	. . . . . . 7 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦)) → (^◡𝐻‘𝑥) ∈ 𝐴)
5		f1ocnvdm 7150	. . . . . . . . . 10 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ 𝑦 ∈ 𝐵) → (^◡𝐻‘𝑦) ∈ 𝐴)
6	5	adantrl 712	. . . . . . . . 9 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵)) → (^◡𝐻‘𝑦) ∈ 𝐴)
7	6	3adant3 1130	. . . . . . . 8 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦)) → (^◡𝐻‘𝑦) ∈ 𝐴)
8		f1ocnvfv2 7143	. . . . . . . . . . 11 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ 𝑥 ∈ 𝐵) → (𝐻‘(^◡𝐻‘𝑥)) = 𝑥)
9	8	eqcomd 2745	. . . . . . . . . 10 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ 𝑥 ∈ 𝐵) → 𝑥 = (𝐻‘(^◡𝐻‘𝑥)))
10		f1ocnvfv2 7143	. . . . . . . . . . 11 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ 𝑦 ∈ 𝐵) → (𝐻‘(^◡𝐻‘𝑦)) = 𝑦)
11	10	eqcomd 2745	. . . . . . . . . 10 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ 𝑦 ∈ 𝐵) → 𝑦 = (𝐻‘(^◡𝐻‘𝑦)))
12	9, 11	anim12dan 618	. . . . . . . . 9 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵)) → (𝑥 = (𝐻‘(^◡𝐻‘𝑥)) ∧ 𝑦 = (𝐻‘(^◡𝐻‘𝑦))))
13	12	3adant3 1130	. . . . . . . 8 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦)) → (𝑥 = (𝐻‘(^◡𝐻‘𝑥)) ∧ 𝑦 = (𝐻‘(^◡𝐻‘𝑦))))
14		simp3 1136	. . . . . . . 8 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦)) → (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦))
15		fveq2 6768	. . . . . . . . . . . 12 ⊢ (𝑤 = (^◡𝐻‘𝑦) → (𝐻‘𝑤) = (𝐻‘(^◡𝐻‘𝑦)))
16	15	eqeq2d 2750	. . . . . . . . . . 11 ⊢ (𝑤 = (^◡𝐻‘𝑦) → (𝑦 = (𝐻‘𝑤) ↔ 𝑦 = (𝐻‘(^◡𝐻‘𝑦))))
17	16	anbi2d 628	. . . . . . . . . 10 ⊢ (𝑤 = (^◡𝐻‘𝑦) → ((𝑥 = (𝐻‘(^◡𝐻‘𝑥)) ∧ 𝑦 = (𝐻‘𝑤)) ↔ (𝑥 = (𝐻‘(^◡𝐻‘𝑥)) ∧ 𝑦 = (𝐻‘(^◡𝐻‘𝑦)))))
18		breq2 5082	. . . . . . . . . 10 ⊢ (𝑤 = (^◡𝐻‘𝑦) → ((^◡𝐻‘𝑥)𝑅𝑤 ↔ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦)))
19	17, 18	anbi12d 630	. . . . . . . . 9 ⊢ (𝑤 = (^◡𝐻‘𝑦) → (((𝑥 = (𝐻‘(^◡𝐻‘𝑥)) ∧ 𝑦 = (𝐻‘𝑤)) ∧ (^◡𝐻‘𝑥)𝑅𝑤) ↔ ((𝑥 = (𝐻‘(^◡𝐻‘𝑥)) ∧ 𝑦 = (𝐻‘(^◡𝐻‘𝑦))) ∧ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦))))
20	19	rspcev 3560	. . . . . . . 8 ⊢ (((^◡𝐻‘𝑦) ∈ 𝐴 ∧ ((𝑥 = (𝐻‘(^◡𝐻‘𝑥)) ∧ 𝑦 = (𝐻‘(^◡𝐻‘𝑦))) ∧ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦))) → ∃𝑤 ∈ 𝐴 ((𝑥 = (𝐻‘(^◡𝐻‘𝑥)) ∧ 𝑦 = (𝐻‘𝑤)) ∧ (^◡𝐻‘𝑥)𝑅𝑤))
21	7, 13, 14, 20	syl12anc 833	. . . . . . 7 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦)) → ∃𝑤 ∈ 𝐴 ((𝑥 = (𝐻‘(^◡𝐻‘𝑥)) ∧ 𝑦 = (𝐻‘𝑤)) ∧ (^◡𝐻‘𝑥)𝑅𝑤))
22		fveq2 6768	. . . . . . . . . . . 12 ⊢ (𝑧 = (^◡𝐻‘𝑥) → (𝐻‘𝑧) = (𝐻‘(^◡𝐻‘𝑥)))
23	22	eqeq2d 2750	. . . . . . . . . . 11 ⊢ (𝑧 = (^◡𝐻‘𝑥) → (𝑥 = (𝐻‘𝑧) ↔ 𝑥 = (𝐻‘(^◡𝐻‘𝑥))))
24	23	anbi1d 629	. . . . . . . . . 10 ⊢ (𝑧 = (^◡𝐻‘𝑥) → ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ↔ (𝑥 = (𝐻‘(^◡𝐻‘𝑥)) ∧ 𝑦 = (𝐻‘𝑤))))
25		breq1 5081	. . . . . . . . . 10 ⊢ (𝑧 = (^◡𝐻‘𝑥) → (𝑧𝑅𝑤 ↔ (^◡𝐻‘𝑥)𝑅𝑤))
26	24, 25	anbi12d 630	. . . . . . . . 9 ⊢ (𝑧 = (^◡𝐻‘𝑥) → (((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤) ↔ ((𝑥 = (𝐻‘(^◡𝐻‘𝑥)) ∧ 𝑦 = (𝐻‘𝑤)) ∧ (^◡𝐻‘𝑥)𝑅𝑤)))
27	26	rexbidv 3227	. . . . . . . 8 ⊢ (𝑧 = (^◡𝐻‘𝑥) → (∃𝑤 ∈ 𝐴 ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤) ↔ ∃𝑤 ∈ 𝐴 ((𝑥 = (𝐻‘(^◡𝐻‘𝑥)) ∧ 𝑦 = (𝐻‘𝑤)) ∧ (^◡𝐻‘𝑥)𝑅𝑤)))
28	27	rspcev 3560	. . . . . . 7 ⊢ (((^◡𝐻‘𝑥) ∈ 𝐴 ∧ ∃𝑤 ∈ 𝐴 ((𝑥 = (𝐻‘(^◡𝐻‘𝑥)) ∧ 𝑦 = (𝐻‘𝑤)) ∧ (^◡𝐻‘𝑥)𝑅𝑤)) → ∃𝑧 ∈ 𝐴 ∃𝑤 ∈ 𝐴 ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤))
29	4, 21, 28	syl2anc 583	. . . . . 6 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦)) → ∃𝑧 ∈ 𝐴 ∃𝑤 ∈ 𝐴 ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤))
30	29	3expib 1120	. . . . 5 ⊢ (𝐻:𝐴–1-1-onto→𝐵 → (((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦)) → ∃𝑧 ∈ 𝐴 ∃𝑤 ∈ 𝐴 ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)))
31		simp3ll 1242	. . . . . . . . 9 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → 𝑥 = (𝐻‘𝑧))
32		simp1 1134	. . . . . . . . . 10 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → 𝐻:𝐴–1-1-onto→𝐵)
33		simp2l 1197	. . . . . . . . . 10 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → 𝑧 ∈ 𝐴)
34		f1of 6712	. . . . . . . . . . 11 ⊢ (𝐻:𝐴–1-1-onto→𝐵 → 𝐻:𝐴⟶𝐵)
35	34	ffvelrnda 6955	. . . . . . . . . 10 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ 𝑧 ∈ 𝐴) → (𝐻‘𝑧) ∈ 𝐵)
36	32, 33, 35	syl2anc 583	. . . . . . . . 9 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → (𝐻‘𝑧) ∈ 𝐵)
37	31, 36	eqeltrd 2840	. . . . . . . 8 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → 𝑥 ∈ 𝐵)
38		simp3lr 1243	. . . . . . . . 9 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → 𝑦 = (𝐻‘𝑤))
39		simp2r 1198	. . . . . . . . . 10 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → 𝑤 ∈ 𝐴)
40	34	ffvelrnda 6955	. . . . . . . . . 10 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ 𝑤 ∈ 𝐴) → (𝐻‘𝑤) ∈ 𝐵)
41	32, 39, 40	syl2anc 583	. . . . . . . . 9 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → (𝐻‘𝑤) ∈ 𝐵)
42	38, 41	eqeltrd 2840	. . . . . . . 8 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → 𝑦 ∈ 𝐵)
43		simp3r 1200	. . . . . . . . 9 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → 𝑧𝑅𝑤)
44	31	eqcomd 2745	. . . . . . . . . 10 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → (𝐻‘𝑧) = 𝑥)
45		f1ocnvfv 7144	. . . . . . . . . . 11 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ 𝑧 ∈ 𝐴) → ((𝐻‘𝑧) = 𝑥 → (^◡𝐻‘𝑥) = 𝑧))
46	32, 33, 45	syl2anc 583	. . . . . . . . . 10 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → ((𝐻‘𝑧) = 𝑥 → (^◡𝐻‘𝑥) = 𝑧))
47	44, 46	mpd 15	. . . . . . . . 9 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → (^◡𝐻‘𝑥) = 𝑧)
48	38	eqcomd 2745	. . . . . . . . . 10 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → (𝐻‘𝑤) = 𝑦)
49		f1ocnvfv 7144	. . . . . . . . . . 11 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ 𝑤 ∈ 𝐴) → ((𝐻‘𝑤) = 𝑦 → (^◡𝐻‘𝑦) = 𝑤))
50	32, 39, 49	syl2anc 583	. . . . . . . . . 10 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → ((𝐻‘𝑤) = 𝑦 → (^◡𝐻‘𝑦) = 𝑤))
51	48, 50	mpd 15	. . . . . . . . 9 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → (^◡𝐻‘𝑦) = 𝑤)
52	43, 47, 51	3brtr4d 5110	. . . . . . . 8 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦))
53	37, 42, 52	jca31 514	. . . . . . 7 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ (𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) ∧ ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)) → ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦)))
54	53	3exp 1117	. . . . . 6 ⊢ (𝐻:𝐴–1-1-onto→𝐵 → ((𝑧 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴) → (((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤) → ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦)))))
55	54	rexlimdvv 3223	. . . . 5 ⊢ (𝐻:𝐴–1-1-onto→𝐵 → (∃𝑧 ∈ 𝐴 ∃𝑤 ∈ 𝐴 ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤) → ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦))))
56	30, 55	impbid 211	. . . 4 ⊢ (𝐻:𝐴–1-1-onto→𝐵 → (((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦)) ↔ ∃𝑧 ∈ 𝐴 ∃𝑤 ∈ 𝐴 ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)))
57	56	opabbidv 5144	. . 3 ⊢ (𝐻:𝐴–1-1-onto→𝐵 → {⟨𝑥, 𝑦⟩ ∣ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ (^◡𝐻‘𝑥)𝑅(^◡𝐻‘𝑦))} = {⟨𝑥, 𝑦⟩ ∣ ∃𝑧 ∈ 𝐴 ∃𝑤 ∈ 𝐴 ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)})
58	1, 57	eqtrid 2791	. 2 ⊢ (𝐻:𝐴–1-1-onto→𝐵 → 𝑆 = {⟨𝑥, 𝑦⟩ ∣ ∃𝑧 ∈ 𝐴 ∃𝑤 ∈ 𝐴 ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)})
59		f1oiso 7215	. 2 ⊢ ((𝐻:𝐴–1-1-onto→𝐵 ∧ 𝑆 = {⟨𝑥, 𝑦⟩ ∣ ∃𝑧 ∈ 𝐴 ∃𝑤 ∈ 𝐴 ((𝑥 = (𝐻‘𝑧) ∧ 𝑦 = (𝐻‘𝑤)) ∧ 𝑧𝑅𝑤)}) → 𝐻 Isom 𝑅, 𝑆 (𝐴, 𝐵))
60	58, 59	mpdan 683	1 ⊢ (𝐻:𝐴–1-1-onto→𝐵 → 𝐻 Isom 𝑅, 𝑆 (𝐴, 𝐵))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1085 = wceq 1541 ∈ wcel 2109 ∃wrex 3066 class class class wbr 5078 {copab 5140 ^◡ccnv 5587 –1-1-onto→wf1o 6429 ‘cfv 6430 Isom wiso 6431

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-sep 5226 ax-nul 5233 ax-pr 5355

This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-ral 3070 df-rex 3071 df-rab 3074 df-v 3432 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-nul 4262 df-if 4465 df-sn 4567 df-pr 4569 df-op 4573 df-uni 4845 df-br 5079 df-opab 5141 df-id 5488 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-rn 5599 df-res 5600 df-ima 5601 df-iota 6388 df-fun 6432 df-fn 6433 df-f 6434 df-f1 6435 df-fo 6436 df-f1o 6437 df-fv 6438 df-isom 6439

This theorem is referenced by: fnwelem 7956

W3C validator