New Foundations Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > NFE Home > Th. List > oveq | GIF version |
Description: Equality theorem for operation value. (Contributed by set.mm contributors, 28-Feb-1995.) |
Ref | Expression |
---|---|
oveq | ⊢ (F = G → (AFB) = (AGB)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fveq1 5328 | . 2 ⊢ (F = G → (F ‘〈A, B〉) = (G ‘〈A, B〉)) | |
2 | df-ov 5527 | . 2 ⊢ (AFB) = (F ‘〈A, B〉) | |
3 | df-ov 5527 | . 2 ⊢ (AGB) = (G ‘〈A, B〉) | |
4 | 1, 2, 3 | 3eqtr4g 2410 | 1 ⊢ (F = G → (AFB) = (AGB)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1642 〈cop 4562 ‘cfv 4782 (class class class)co 5526 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1546 ax-5 1557 ax-17 1616 ax-9 1654 ax-8 1675 ax-6 1729 ax-7 1734 ax-11 1746 ax-12 1925 ax-ext 2334 |
This theorem depends on definitions: df-bi 177 df-or 359 df-an 360 df-tru 1319 df-ex 1542 df-nf 1545 df-sb 1649 df-clab 2340 df-cleq 2346 df-clel 2349 df-nfc 2479 df-rex 2621 df-uni 3893 df-iota 4340 df-br 4641 df-fv 4796 df-ov 5527 |
This theorem is referenced by: oveqi 5537 oveqd 5540 |
Copyright terms: Public domain | W3C validator |