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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 5117 | . 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 1402 “ cima 4772 |
| 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 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 theorem 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-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-sn 3711 df-pr 3712 df-op 3714 df-br 4126 df-opab 4188 df-xp 4775 df-cnv 4777 df-dm 4779 df-rn 4780 df-res 4781 df-ima 4782 |
| This theorem is referenced by: imaeq12d 5122 nfimad 5130 elimasng 5150 ressn 5323 foima 5615 f1imacnv 5651 fvco2 5768 fsn2 5873 fncofn 5884 resfunexg 5927 funfvima3 5942 funiunfvdm 5959 isoselem 6016 fnexALT 6330 suppsnopdc 6480 suppcofn 6496 imacosuppfn 6498 eceq1 6832 uniqs2 6859 ecinxp 6874 mapsnd 6960 mapsn 6962 en2 7102 phplem4 7146 phplem4dom 7153 phplem4on 7159 sbthlem2 7265 isbth 7274 resunimafz0 11252 ballotfilemscr 13240 ennnfonelemg 13272 ennnfonelemhf1o 13282 ennnfonelemex 13283 ennnfonelemrn 13288 cnntr 15249 cnptopresti 15262 cnptoprest 15263 eupth2lem3fi 16631 eupth2fi 16634 |
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