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Mirrors > Home > MPE Home > Th. List > Mathboxes > afv2eq1 | Structured version Visualization version GIF version |
Description: Equality theorem for function value, analogous to fveq1 6662. (Contributed by AV, 4-Sep-2022.) |
Ref | Expression |
---|---|
afv2eq1 | ⊢ (𝐹 = 𝐺 → (𝐹''''𝐴) = (𝐺''''𝐴)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | id 22 | . 2 ⊢ (𝐹 = 𝐺 → 𝐹 = 𝐺) | |
2 | eqidd 2821 | . 2 ⊢ (𝐹 = 𝐺 → 𝐴 = 𝐴) | |
3 | 1, 2 | afv2eq12d 43489 | 1 ⊢ (𝐹 = 𝐺 → (𝐹''''𝐴) = (𝐺''''𝐴)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1536 ''''cafv2 43482 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1969 ax-7 2014 ax-8 2115 ax-9 2123 ax-10 2144 ax-11 2160 ax-12 2176 ax-ext 2792 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1084 df-tru 1539 df-ex 1780 df-nf 1784 df-sb 2069 df-clab 2799 df-cleq 2813 df-clel 2892 df-nfc 2962 df-rab 3146 df-v 3493 df-dif 3932 df-un 3934 df-in 3936 df-ss 3945 df-nul 4285 df-if 4461 df-pw 4534 df-sn 4561 df-pr 4563 df-op 4567 df-uni 4832 df-br 5060 df-opab 5122 df-xp 5554 df-rel 5555 df-cnv 5556 df-co 5557 df-dm 5558 df-rn 5559 df-res 5560 df-iota 6307 df-fun 6350 df-dfat 43393 df-afv2 43483 |
This theorem is referenced by: (None) |
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