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| Mirrors > Home > ILE Home > Th. List > imaeq2d | GIF version | ||
| Description: Equality theorem for image. (Contributed by FL, 15-Dec-2006.) |
| Ref | Expression |
|---|---|
| imaeq1d.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| Ref | Expression |
|---|---|
| imaeq2d | ⊢ (𝜑 → (𝐶 “ 𝐴) = (𝐶 “ 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | imaeq1d.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | imaeq2 5072 | . 2 ⊢ (𝐴 = 𝐵 → (𝐶 “ 𝐴) = (𝐶 “ 𝐵)) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → (𝐶 “ 𝐴) = (𝐶 “ 𝐵)) |
| 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-xp 4731 df-cnv 4733 df-dm 4735 df-rn 4736 df-res 4737 df-ima 4738 |
| This theorem is referenced by: imaeq12d 5077 nfimad 5085 elimasng 5104 ressn 5277 foima 5564 f1imacnv 5600 fvco2 5715 fsn2 5821 fncofn 5831 resfunexg 5874 funfvima3 5887 funiunfvdm 5903 isoselem 5960 fnexALT 6272 eceq1 6736 uniqs2 6763 ecinxp 6778 mapsn 6858 en2 6997 phplem4 7040 phplem4dom 7047 phplem4on 7053 sbthlem2 7156 isbth 7165 resunimafz0 11094 ennnfonelemg 13023 ennnfonelemhf1o 13033 ennnfonelemex 13034 ennnfonelemrn 13039 cnntr 14948 cnptopresti 14961 cnptoprest 14962 |
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