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Mirrors > Home > ILE Home > Th. List > oveq123i | GIF version |
Description: Equality inference for operation value. (Contributed by FL, 11-Jul-2010.) |
Ref | Expression |
---|---|
oveq123i.1 | ⊢ 𝐴 = 𝐶 |
oveq123i.2 | ⊢ 𝐵 = 𝐷 |
oveq123i.3 | ⊢ 𝐹 = 𝐺 |
Ref | Expression |
---|---|
oveq123i | ⊢ (𝐴𝐹𝐵) = (𝐶𝐺𝐷) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | oveq123i.1 | . . 3 ⊢ 𝐴 = 𝐶 | |
2 | oveq123i.2 | . . 3 ⊢ 𝐵 = 𝐷 | |
3 | 1, 2 | oveq12i 5794 | . 2 ⊢ (𝐴𝐹𝐵) = (𝐶𝐹𝐷) |
4 | oveq123i.3 | . . 3 ⊢ 𝐹 = 𝐺 | |
5 | 4 | oveqi 5795 | . 2 ⊢ (𝐶𝐹𝐷) = (𝐶𝐺𝐷) |
6 | 3, 5 | eqtri 2161 | 1 ⊢ (𝐴𝐹𝐵) = (𝐶𝐺𝐷) |
Colors of variables: wff set class |
Syntax hints: = wceq 1332 (class class class)co 5782 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1335 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-rex 2423 df-v 2691 df-un 3080 df-sn 3538 df-pr 3539 df-op 3541 df-uni 3745 df-br 3938 df-iota 5096 df-fv 5139 df-ov 5785 |
This theorem is referenced by: (None) |
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