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| Mirrors > Home > ILE Home > Th. List > imaeq1d | GIF version | ||
| Description: Equality theorem for image. (Contributed by FL, 15-Dec-2006.) |
| Ref | Expression |
|---|---|
| imaeq1d.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| Ref | Expression |
|---|---|
| imaeq1d | ⊢ (𝜑 → (𝐴 “ 𝐶) = (𝐵 “ 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | imaeq1d.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | imaeq1 5077 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 “ 𝐶) = (𝐵 “ 𝐶)) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → (𝐴 “ 𝐶) = (𝐵 “ 𝐶)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 “ cima 4734 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-v 2805 df-un 3205 df-in 3207 df-ss 3214 df-sn 3679 df-pr 3680 df-op 3682 df-br 4094 df-opab 4156 df-cnv 4739 df-dm 4741 df-rn 4742 df-res 4743 df-ima 4744 |
| This theorem is referenced by: imaeq12d 5083 nfimad 5091 f1imacnv 5609 foimacnv 5610 suppssof1 6262 ssenen 7080 1arith 13003 eqglact 13875 psrbag 14748 psr1clfi 14772 iscn 14991 |
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