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| Mirrors > Home > ILE Home > Th. List > oveq | GIF version | ||
| Description: Equality theorem for operation value. (Contributed by NM, 28-Feb-1995.) |
| Ref | Expression |
|---|---|
| oveq | ⊢ (𝐹 = 𝐺 → (𝐴𝐹𝐵) = (𝐴𝐺𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fveq1 5560 | . 2 ⊢ (𝐹 = 𝐺 → (𝐹‘〈𝐴, 𝐵〉) = (𝐺‘〈𝐴, 𝐵〉)) | |
| 2 | df-ov 5928 | . 2 ⊢ (𝐴𝐹𝐵) = (𝐹‘〈𝐴, 𝐵〉) | |
| 3 | df-ov 5928 | . 2 ⊢ (𝐴𝐺𝐵) = (𝐺‘〈𝐴, 𝐵〉) | |
| 4 | 1, 2, 3 | 3eqtr4g 2254 | 1 ⊢ (𝐹 = 𝐺 → (𝐴𝐹𝐵) = (𝐴𝐺𝐵)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1364 〈cop 3626 ‘cfv 5259 (class class class)co 5925 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-ext 2178 |
| This theorem depends on definitions: df-bi 117 df-tru 1367 df-nf 1475 df-sb 1777 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-rex 2481 df-uni 3841 df-br 4035 df-iota 5220 df-fv 5267 df-ov 5928 |
| This theorem is referenced by: oveqi 5938 oveqd 5942 ovmpodf 6058 ovmpodv2 6060 mapxpen 6918 ismgm 13059 mgmsscl 13063 issgrp 13105 ismnddef 13120 grpissubg 13400 isrng 13566 islmod 13923 lmodfopne 13958 ispsmet 14643 ismet 14664 isxmet 14665 |
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