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Theorem soisores 6740
Description: Express the condition of isomorphism on two strict orders for a function's restriction. (Contributed by Mario Carneiro, 22-Jan-2015.)
Assertion
Ref Expression
soisores (((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵)) → ((𝐹𝐴) Isom 𝑅, 𝑆 (𝐴, (𝐹𝐴)) ↔ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))))
Distinct variable groups:   𝑥,𝑦,𝐴   𝑥,𝐹,𝑦   𝑥,𝑅,𝑦   𝑥,𝑆,𝑦
Allowed substitution hints:   𝐵(𝑥,𝑦)   𝐶(𝑥,𝑦)

Proof of Theorem soisores
Dummy variables 𝑤 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 isorel 6739 . . . . 5 (((𝐹𝐴) Isom 𝑅, 𝑆 (𝐴, (𝐹𝐴)) ∧ (𝑥𝐴𝑦𝐴)) → (𝑥𝑅𝑦 ↔ ((𝐹𝐴)‘𝑥)𝑆((𝐹𝐴)‘𝑦)))
2 fvres 6368 . . . . . . 7 (𝑥𝐴 → ((𝐹𝐴)‘𝑥) = (𝐹𝑥))
3 fvres 6368 . . . . . . 7 (𝑦𝐴 → ((𝐹𝐴)‘𝑦) = (𝐹𝑦))
42, 3breqan12d 4820 . . . . . 6 ((𝑥𝐴𝑦𝐴) → (((𝐹𝐴)‘𝑥)𝑆((𝐹𝐴)‘𝑦) ↔ (𝐹𝑥)𝑆(𝐹𝑦)))
54adantl 473 . . . . 5 (((𝐹𝐴) Isom 𝑅, 𝑆 (𝐴, (𝐹𝐴)) ∧ (𝑥𝐴𝑦𝐴)) → (((𝐹𝐴)‘𝑥)𝑆((𝐹𝐴)‘𝑦) ↔ (𝐹𝑥)𝑆(𝐹𝑦)))
61, 5bitrd 268 . . . 4 (((𝐹𝐴) Isom 𝑅, 𝑆 (𝐴, (𝐹𝐴)) ∧ (𝑥𝐴𝑦𝐴)) → (𝑥𝑅𝑦 ↔ (𝐹𝑥)𝑆(𝐹𝑦)))
76biimpd 219 . . 3 (((𝐹𝐴) Isom 𝑅, 𝑆 (𝐴, (𝐹𝐴)) ∧ (𝑥𝐴𝑦𝐴)) → (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦)))
87ralrimivva 3109 . 2 ((𝐹𝐴) Isom 𝑅, 𝑆 (𝐴, (𝐹𝐴)) → ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦)))
9 ffn 6206 . . . . . . . 8 (𝐹:𝐵𝐶𝐹 Fn 𝐵)
109ad2antrl 766 . . . . . . 7 (((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵)) → 𝐹 Fn 𝐵)
11 simprr 813 . . . . . . 7 (((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵)) → 𝐴𝐵)
12 fnssres 6165 . . . . . . 7 ((𝐹 Fn 𝐵𝐴𝐵) → (𝐹𝐴) Fn 𝐴)
1310, 11, 12syl2anc 696 . . . . . 6 (((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵)) → (𝐹𝐴) Fn 𝐴)
14133adant3 1127 . . . . 5 (((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) → (𝐹𝐴) Fn 𝐴)
15 df-ima 5279 . . . . . . 7 (𝐹𝐴) = ran (𝐹𝐴)
1615eqcomi 2769 . . . . . 6 ran (𝐹𝐴) = (𝐹𝐴)
1716a1i 11 . . . . 5 (((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) → ran (𝐹𝐴) = (𝐹𝐴))
18 fvres 6368 . . . . . . . . 9 (𝑧𝐴 → ((𝐹𝐴)‘𝑧) = (𝐹𝑧))
19 fvres 6368 . . . . . . . . 9 (𝑤𝐴 → ((𝐹𝐴)‘𝑤) = (𝐹𝑤))
2018, 19eqeqan12d 2776 . . . . . . . 8 ((𝑧𝐴𝑤𝐴) → (((𝐹𝐴)‘𝑧) = ((𝐹𝐴)‘𝑤) ↔ (𝐹𝑧) = (𝐹𝑤)))
2120adantl 473 . . . . . . 7 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → (((𝐹𝐴)‘𝑧) = ((𝐹𝐴)‘𝑤) ↔ (𝐹𝑧) = (𝐹𝑤)))
22 simprl 811 . . . . . . . . . . 11 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → 𝑧𝐴)
23 simprr 813 . . . . . . . . . . 11 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → 𝑤𝐴)
24 simpl3 1232 . . . . . . . . . . 11 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦)))
25 breq1 4807 . . . . . . . . . . . . 13 (𝑥 = 𝑧 → (𝑥𝑅𝑦𝑧𝑅𝑦))
26 fveq2 6352 . . . . . . . . . . . . . 14 (𝑥 = 𝑧 → (𝐹𝑥) = (𝐹𝑧))
2726breq1d 4814 . . . . . . . . . . . . 13 (𝑥 = 𝑧 → ((𝐹𝑥)𝑆(𝐹𝑦) ↔ (𝐹𝑧)𝑆(𝐹𝑦)))
2825, 27imbi12d 333 . . . . . . . . . . . 12 (𝑥 = 𝑧 → ((𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦)) ↔ (𝑧𝑅𝑦 → (𝐹𝑧)𝑆(𝐹𝑦))))
29 breq2 4808 . . . . . . . . . . . . 13 (𝑦 = 𝑤 → (𝑧𝑅𝑦𝑧𝑅𝑤))
30 fveq2 6352 . . . . . . . . . . . . . 14 (𝑦 = 𝑤 → (𝐹𝑦) = (𝐹𝑤))
3130breq2d 4816 . . . . . . . . . . . . 13 (𝑦 = 𝑤 → ((𝐹𝑧)𝑆(𝐹𝑦) ↔ (𝐹𝑧)𝑆(𝐹𝑤)))
3229, 31imbi12d 333 . . . . . . . . . . . 12 (𝑦 = 𝑤 → ((𝑧𝑅𝑦 → (𝐹𝑧)𝑆(𝐹𝑦)) ↔ (𝑧𝑅𝑤 → (𝐹𝑧)𝑆(𝐹𝑤))))
3328, 32rspc2va 3462 . . . . . . . . . . 11 (((𝑧𝐴𝑤𝐴) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) → (𝑧𝑅𝑤 → (𝐹𝑧)𝑆(𝐹𝑤)))
3422, 23, 24, 33syl21anc 1476 . . . . . . . . . 10 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → (𝑧𝑅𝑤 → (𝐹𝑧)𝑆(𝐹𝑤)))
35 breq1 4807 . . . . . . . . . . . . 13 (𝑥 = 𝑤 → (𝑥𝑅𝑦𝑤𝑅𝑦))
36 fveq2 6352 . . . . . . . . . . . . . 14 (𝑥 = 𝑤 → (𝐹𝑥) = (𝐹𝑤))
3736breq1d 4814 . . . . . . . . . . . . 13 (𝑥 = 𝑤 → ((𝐹𝑥)𝑆(𝐹𝑦) ↔ (𝐹𝑤)𝑆(𝐹𝑦)))
3835, 37imbi12d 333 . . . . . . . . . . . 12 (𝑥 = 𝑤 → ((𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦)) ↔ (𝑤𝑅𝑦 → (𝐹𝑤)𝑆(𝐹𝑦))))
39 breq2 4808 . . . . . . . . . . . . 13 (𝑦 = 𝑧 → (𝑤𝑅𝑦𝑤𝑅𝑧))
40 fveq2 6352 . . . . . . . . . . . . . 14 (𝑦 = 𝑧 → (𝐹𝑦) = (𝐹𝑧))
4140breq2d 4816 . . . . . . . . . . . . 13 (𝑦 = 𝑧 → ((𝐹𝑤)𝑆(𝐹𝑦) ↔ (𝐹𝑤)𝑆(𝐹𝑧)))
4239, 41imbi12d 333 . . . . . . . . . . . 12 (𝑦 = 𝑧 → ((𝑤𝑅𝑦 → (𝐹𝑤)𝑆(𝐹𝑦)) ↔ (𝑤𝑅𝑧 → (𝐹𝑤)𝑆(𝐹𝑧))))
4338, 42rspc2va 3462 . . . . . . . . . . 11 (((𝑤𝐴𝑧𝐴) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) → (𝑤𝑅𝑧 → (𝐹𝑤)𝑆(𝐹𝑧)))
4423, 22, 24, 43syl21anc 1476 . . . . . . . . . 10 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → (𝑤𝑅𝑧 → (𝐹𝑤)𝑆(𝐹𝑧)))
4534, 44orim12d 919 . . . . . . . . 9 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → ((𝑧𝑅𝑤𝑤𝑅𝑧) → ((𝐹𝑧)𝑆(𝐹𝑤) ∨ (𝐹𝑤)𝑆(𝐹𝑧))))
4645con3d 148 . . . . . . . 8 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → (¬ ((𝐹𝑧)𝑆(𝐹𝑤) ∨ (𝐹𝑤)𝑆(𝐹𝑧)) → ¬ (𝑧𝑅𝑤𝑤𝑅𝑧)))
47 simpl1r 1281 . . . . . . . . 9 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → 𝑆 Or 𝐶)
48 simpl2l 1283 . . . . . . . . . 10 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → 𝐹:𝐵𝐶)
49 simpl2r 1285 . . . . . . . . . . 11 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → 𝐴𝐵)
5049, 22sseldd 3745 . . . . . . . . . 10 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → 𝑧𝐵)
5148, 50ffvelrnd 6523 . . . . . . . . 9 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → (𝐹𝑧) ∈ 𝐶)
5249, 23sseldd 3745 . . . . . . . . . 10 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → 𝑤𝐵)
5348, 52ffvelrnd 6523 . . . . . . . . 9 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → (𝐹𝑤) ∈ 𝐶)
54 sotrieq 5214 . . . . . . . . 9 ((𝑆 Or 𝐶 ∧ ((𝐹𝑧) ∈ 𝐶 ∧ (𝐹𝑤) ∈ 𝐶)) → ((𝐹𝑧) = (𝐹𝑤) ↔ ¬ ((𝐹𝑧)𝑆(𝐹𝑤) ∨ (𝐹𝑤)𝑆(𝐹𝑧))))
5547, 51, 53, 54syl12anc 1475 . . . . . . . 8 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → ((𝐹𝑧) = (𝐹𝑤) ↔ ¬ ((𝐹𝑧)𝑆(𝐹𝑤) ∨ (𝐹𝑤)𝑆(𝐹𝑧))))
56 simpl1l 1279 . . . . . . . . 9 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → 𝑅 Or 𝐵)
57 sotrieq 5214 . . . . . . . . 9 ((𝑅 Or 𝐵 ∧ (𝑧𝐵𝑤𝐵)) → (𝑧 = 𝑤 ↔ ¬ (𝑧𝑅𝑤𝑤𝑅𝑧)))
5856, 50, 52, 57syl12anc 1475 . . . . . . . 8 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → (𝑧 = 𝑤 ↔ ¬ (𝑧𝑅𝑤𝑤𝑅𝑧)))
5946, 55, 583imtr4d 283 . . . . . . 7 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → ((𝐹𝑧) = (𝐹𝑤) → 𝑧 = 𝑤))
6021, 59sylbid 230 . . . . . 6 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → (((𝐹𝐴)‘𝑧) = ((𝐹𝐴)‘𝑤) → 𝑧 = 𝑤))
6160ralrimivva 3109 . . . . 5 (((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) → ∀𝑧𝐴𝑤𝐴 (((𝐹𝐴)‘𝑧) = ((𝐹𝐴)‘𝑤) → 𝑧 = 𝑤))
62 dff1o6 6694 . . . . 5 ((𝐹𝐴):𝐴1-1-onto→(𝐹𝐴) ↔ ((𝐹𝐴) Fn 𝐴 ∧ ran (𝐹𝐴) = (𝐹𝐴) ∧ ∀𝑧𝐴𝑤𝐴 (((𝐹𝐴)‘𝑧) = ((𝐹𝐴)‘𝑤) → 𝑧 = 𝑤)))
6314, 17, 61, 62syl3anbrc 1429 . . . 4 (((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) → (𝐹𝐴):𝐴1-1-onto→(𝐹𝐴))
64 fveq2 6352 . . . . . . . . . . 11 (𝑧 = 𝑤 → (𝐹𝑧) = (𝐹𝑤))
6564a1i 11 . . . . . . . . . 10 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → (𝑧 = 𝑤 → (𝐹𝑧) = (𝐹𝑤)))
6665, 44orim12d 919 . . . . . . . . 9 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → ((𝑧 = 𝑤𝑤𝑅𝑧) → ((𝐹𝑧) = (𝐹𝑤) ∨ (𝐹𝑤)𝑆(𝐹𝑧))))
6766con3d 148 . . . . . . . 8 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → (¬ ((𝐹𝑧) = (𝐹𝑤) ∨ (𝐹𝑤)𝑆(𝐹𝑧)) → ¬ (𝑧 = 𝑤𝑤𝑅𝑧)))
68 sotric 5213 . . . . . . . . 9 ((𝑆 Or 𝐶 ∧ ((𝐹𝑧) ∈ 𝐶 ∧ (𝐹𝑤) ∈ 𝐶)) → ((𝐹𝑧)𝑆(𝐹𝑤) ↔ ¬ ((𝐹𝑧) = (𝐹𝑤) ∨ (𝐹𝑤)𝑆(𝐹𝑧))))
6947, 51, 53, 68syl12anc 1475 . . . . . . . 8 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → ((𝐹𝑧)𝑆(𝐹𝑤) ↔ ¬ ((𝐹𝑧) = (𝐹𝑤) ∨ (𝐹𝑤)𝑆(𝐹𝑧))))
70 sotric 5213 . . . . . . . . 9 ((𝑅 Or 𝐵 ∧ (𝑧𝐵𝑤𝐵)) → (𝑧𝑅𝑤 ↔ ¬ (𝑧 = 𝑤𝑤𝑅𝑧)))
7156, 50, 52, 70syl12anc 1475 . . . . . . . 8 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → (𝑧𝑅𝑤 ↔ ¬ (𝑧 = 𝑤𝑤𝑅𝑧)))
7267, 69, 713imtr4d 283 . . . . . . 7 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → ((𝐹𝑧)𝑆(𝐹𝑤) → 𝑧𝑅𝑤))
7334, 72impbid 202 . . . . . 6 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → (𝑧𝑅𝑤 ↔ (𝐹𝑧)𝑆(𝐹𝑤)))
7418, 19breqan12d 4820 . . . . . . 7 ((𝑧𝐴𝑤𝐴) → (((𝐹𝐴)‘𝑧)𝑆((𝐹𝐴)‘𝑤) ↔ (𝐹𝑧)𝑆(𝐹𝑤)))
7574adantl 473 . . . . . 6 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → (((𝐹𝐴)‘𝑧)𝑆((𝐹𝐴)‘𝑤) ↔ (𝐹𝑧)𝑆(𝐹𝑤)))
7673, 75bitr4d 271 . . . . 5 ((((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) ∧ (𝑧𝐴𝑤𝐴)) → (𝑧𝑅𝑤 ↔ ((𝐹𝐴)‘𝑧)𝑆((𝐹𝐴)‘𝑤)))
7776ralrimivva 3109 . . . 4 (((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) → ∀𝑧𝐴𝑤𝐴 (𝑧𝑅𝑤 ↔ ((𝐹𝐴)‘𝑧)𝑆((𝐹𝐴)‘𝑤)))
78 df-isom 6058 . . . 4 ((𝐹𝐴) Isom 𝑅, 𝑆 (𝐴, (𝐹𝐴)) ↔ ((𝐹𝐴):𝐴1-1-onto→(𝐹𝐴) ∧ ∀𝑧𝐴𝑤𝐴 (𝑧𝑅𝑤 ↔ ((𝐹𝐴)‘𝑧)𝑆((𝐹𝐴)‘𝑤))))
7963, 77, 78sylanbrc 701 . . 3 (((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵) ∧ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))) → (𝐹𝐴) Isom 𝑅, 𝑆 (𝐴, (𝐹𝐴)))
80793expia 1115 . 2 (((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵)) → (∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦)) → (𝐹𝐴) Isom 𝑅, 𝑆 (𝐴, (𝐹𝐴))))
818, 80impbid2 216 1 (((𝑅 Or 𝐵𝑆 Or 𝐶) ∧ (𝐹:𝐵𝐶𝐴𝐵)) → ((𝐹𝐴) Isom 𝑅, 𝑆 (𝐴, (𝐹𝐴)) ↔ ∀𝑥𝐴𝑦𝐴 (𝑥𝑅𝑦 → (𝐹𝑥)𝑆(𝐹𝑦))))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 196  wo 382  wa 383  w3a 1072   = wceq 1632  wcel 2139  wral 3050  wss 3715   class class class wbr 4804   Or wor 5186  ran crn 5267  cres 5268  cima 5269   Fn wfn 6044  wf 6045  1-1-ontowf1o 6048  cfv 6049   Isom wiso 6050
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1871  ax-4 1886  ax-5 1988  ax-6 2054  ax-7 2090  ax-9 2148  ax-10 2168  ax-11 2183  ax-12 2196  ax-13 2391  ax-ext 2740  ax-sep 4933  ax-nul 4941  ax-pr 5055
This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3or 1073  df-3an 1074  df-tru 1635  df-ex 1854  df-nf 1859  df-sb 2047  df-eu 2611  df-mo 2612  df-clab 2747  df-cleq 2753  df-clel 2756  df-nfc 2891  df-ral 3055  df-rex 3056  df-rab 3059  df-v 3342  df-sbc 3577  df-dif 3718  df-un 3720  df-in 3722  df-ss 3729  df-nul 4059  df-if 4231  df-sn 4322  df-pr 4324  df-op 4328  df-uni 4589  df-br 4805  df-opab 4865  df-id 5174  df-po 5187  df-so 5188  df-xp 5272  df-rel 5273  df-cnv 5274  df-co 5275  df-dm 5276  df-rn 5277  df-res 5278  df-ima 5279  df-iota 6012  df-fun 6051  df-fn 6052  df-f 6053  df-f1 6054  df-fo 6055  df-f1o 6056  df-fv 6057  df-isom 6058
This theorem is referenced by:  isercolllem1  14594  dvgt0lem2  23965  erdszelem4  31483  erdszelem8  31487  erdsze2lem2  31493
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