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| Mirrors > Home > ILE Home > Th. List > oveq123d | GIF version | ||
| Description: Equality deduction for operation value. (Contributed by FL, 22-Dec-2008.) |
| Ref | Expression |
|---|---|
| oveq123d.1 | ⊢ (𝜑 → 𝐹 = 𝐺) |
| oveq123d.2 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| oveq123d.3 | ⊢ (𝜑 → 𝐶 = 𝐷) |
| Ref | Expression |
|---|---|
| oveq123d | ⊢ (𝜑 → (𝐴𝐹𝐶) = (𝐵𝐺𝐷)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | oveq123d.1 | . . 3 ⊢ (𝜑 → 𝐹 = 𝐺) | |
| 2 | 1 | oveqd 6102 | . 2 ⊢ (𝜑 → (𝐴𝐹𝐶) = (𝐴𝐺𝐶)) |
| 3 | oveq123d.2 | . . 3 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 4 | oveq123d.3 | . . 3 ⊢ (𝜑 → 𝐶 = 𝐷) | |
| 5 | 3, 4 | oveq12d 6103 | . 2 ⊢ (𝜑 → (𝐴𝐺𝐶) = (𝐵𝐺𝐷)) |
| 6 | 2, 5 | eqtrd 2271 | 1 ⊢ (𝜑 → (𝐴𝐹𝐶) = (𝐵𝐺𝐷)) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 = wceq 1402 (class class class)co 6085 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-rex 2534 df-v 2823 df-un 3224 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-iota 5337 df-fv 5385 df-ov 6088 |
| This theorem is used by: csbov123g 6124 issgrp 13771 sgrp1 13779 issgrpd 13780 ismndd 13803 grpsubfvalg 13903 grpsubpropdg 13962 imasgrp 13967 subgsub 14042 releqgg 14076 eqgex 14077 eqgfval 14078 prdsplusgfval 14268 prdsmulrfval 14270 isrng 14317 isrngd 14336 issrg 14353 srgidmlem 14366 isring 14388 ringass 14404 ringidmlem 14411 isringd 14430 ring1 14448 unitlinv 14517 unitrinv 14518 dvrfvald 14524 opprdrng 14704 islmodd 14713 islidlm 14900 rnglidlmsgrp 14918 rnglidlrng 14919 isassad 15095 asclfval 15105 ressascl 15123 psrval 15134 |
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