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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 5071 | . 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 1397 “ cima 4728 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-v 2804 df-un 3204 df-in 3206 df-ss 3213 df-sn 3675 df-pr 3676 df-op 3678 df-br 4089 df-opab 4151 df-cnv 4733 df-dm 4735 df-rn 4736 df-res 4737 df-ima 4738 |
| This theorem is referenced by: imaeq12d 5077 nfimad 5085 f1imacnv 5600 foimacnv 5601 suppssof1 6252 ssenen 7036 1arith 12939 eqglact 13811 psrbag 14682 psr1clfi 14701 iscn 14920 |
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