Theorem weisoeq2 7305

Description: Thus, there is at most one isomorphism between any two set-like well-ordered classes. Class version of wemoiso2 7921. (Contributed by Mario Carneiro, 25-Jun-2015.)

Assertion

Ref	Expression
weisoeq2	⊢ (((𝑆 We 𝐵 ∧ 𝑆 Se 𝐵) ∧ (𝐹 Isom 𝑅, 𝑆 (𝐴, 𝐵) ∧ 𝐺 Isom 𝑅, 𝑆 (𝐴, 𝐵))) → 𝐹 = 𝐺)

Proof of Theorem weisoeq2

Step	Hyp	Ref	Expression
1		isocnv 7279	. . . 4 ⊢ (𝐹 Isom 𝑅, 𝑆 (𝐴, 𝐵) → ◡𝐹 Isom 𝑆, 𝑅 (𝐵, 𝐴))
2		isocnv 7279	. . . 4 ⊢ (𝐺 Isom 𝑅, 𝑆 (𝐴, 𝐵) → ◡𝐺 Isom 𝑆, 𝑅 (𝐵, 𝐴))
3	1, 2	anim12i 614	. . 3 ⊢ ((𝐹 Isom 𝑅, 𝑆 (𝐴, 𝐵) ∧ 𝐺 Isom 𝑅, 𝑆 (𝐴, 𝐵)) → (◡𝐹 Isom 𝑆, 𝑅 (𝐵, 𝐴) ∧ ◡𝐺 Isom 𝑆, 𝑅 (𝐵, 𝐴)))
4		weisoeq 7304	. . 3 ⊢ (((𝑆 We 𝐵 ∧ 𝑆 Se 𝐵) ∧ (◡𝐹 Isom 𝑆, 𝑅 (𝐵, 𝐴) ∧ ◡𝐺 Isom 𝑆, 𝑅 (𝐵, 𝐴))) → ◡𝐹 = ◡𝐺)
5	3, 4	sylan2 594	. 2 ⊢ (((𝑆 We 𝐵 ∧ 𝑆 Se 𝐵) ∧ (𝐹 Isom 𝑅, 𝑆 (𝐴, 𝐵) ∧ 𝐺 Isom 𝑅, 𝑆 (𝐴, 𝐵))) → ◡𝐹 = ◡𝐺)
6		simprl 771	. . . 4 ⊢ (((𝑆 We 𝐵 ∧ 𝑆 Se 𝐵) ∧ (𝐹 Isom 𝑅, 𝑆 (𝐴, 𝐵) ∧ 𝐺 Isom 𝑅, 𝑆 (𝐴, 𝐵))) → 𝐹 Isom 𝑅, 𝑆 (𝐴, 𝐵))
7		isof1o 7272	. . . 4 ⊢ (𝐹 Isom 𝑅, 𝑆 (𝐴, 𝐵) → 𝐹:𝐴–1-1-onto→𝐵)
8		f1orel 6778	. . . 4 ⊢ (𝐹:𝐴–1-1-onto→𝐵 → Rel 𝐹)
9	6, 7, 8	3syl 18	. . 3 ⊢ (((𝑆 We 𝐵 ∧ 𝑆 Se 𝐵) ∧ (𝐹 Isom 𝑅, 𝑆 (𝐴, 𝐵) ∧ 𝐺 Isom 𝑅, 𝑆 (𝐴, 𝐵))) → Rel 𝐹)
10		simprr 773	. . . 4 ⊢ (((𝑆 We 𝐵 ∧ 𝑆 Se 𝐵) ∧ (𝐹 Isom 𝑅, 𝑆 (𝐴, 𝐵) ∧ 𝐺 Isom 𝑅, 𝑆 (𝐴, 𝐵))) → 𝐺 Isom 𝑅, 𝑆 (𝐴, 𝐵))
11		isof1o 7272	. . . 4 ⊢ (𝐺 Isom 𝑅, 𝑆 (𝐴, 𝐵) → 𝐺:𝐴–1-1-onto→𝐵)
12		f1orel 6778	. . . 4 ⊢ (𝐺:𝐴–1-1-onto→𝐵 → Rel 𝐺)
13	10, 11, 12	3syl 18	. . 3 ⊢ (((𝑆 We 𝐵 ∧ 𝑆 Se 𝐵) ∧ (𝐹 Isom 𝑅, 𝑆 (𝐴, 𝐵) ∧ 𝐺 Isom 𝑅, 𝑆 (𝐴, 𝐵))) → Rel 𝐺)
14		cnveqb 6155	. . 3 ⊢ ((Rel 𝐹 ∧ Rel 𝐺) → (𝐹 = 𝐺 ↔ ◡𝐹 = ◡𝐺))
15	9, 13, 14	syl2anc 585	. 2 ⊢ (((𝑆 We 𝐵 ∧ 𝑆 Se 𝐵) ∧ (𝐹 Isom 𝑅, 𝑆 (𝐴, 𝐵) ∧ 𝐺 Isom 𝑅, 𝑆 (𝐴, 𝐵))) → (𝐹 = 𝐺 ↔ ◡𝐹 = ◡𝐺))
16	5, 15	mpbird 257	1 ⊢ (((𝑆 We 𝐵 ∧ 𝑆 Se 𝐵) ∧ (𝐹 Isom 𝑅, 𝑆 (𝐴, 𝐵) ∧ 𝐺 Isom 𝑅, 𝑆 (𝐴, 𝐵))) → 𝐹 = 𝐺)

Syntax hints:   → wi 4   ↔ wb 206   ∧ wa 395   = wceq 1542   Se wse 5576   We wwe 5577  ^◡ccnv 5624  Rel wrel 5630  –1-1-onto→wf1o 6492   Isom wiso 6494

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 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709  ax-sep 5232  ax-nul 5242  ax-pr 5371

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3or 1088  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ne 2934  df-ral 3053  df-rex 3063  df-rmo 3343  df-reu 3344  df-rab 3391  df-v 3432  df-sbc 3730  df-csb 3839  df-dif 3893  df-un 3895  df-in 3897  df-ss 3907  df-nul 4275  df-if 4468  df-pw 4544  df-sn 4569  df-pr 4571  df-op 4575  df-uni 4852  df-br 5087  df-opab 5149  df-mpt 5168  df-id 5520  df-po 5533  df-so 5534  df-fr 5578  df-se 5579  df-we 5580  df-xp 5631  df-rel 5632  df-cnv 5633  df-co 5634  df-dm 5635  df-rn 5636  df-res 5637  df-ima 5638  df-iota 6449  df-fun 6495  df-fn 6496  df-f 6497  df-f1 6498  df-fo 6499  df-f1o 6500  df-fv 6501  df-isom 6502

This theorem is referenced by:  wemoiso2  7921