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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 5097 | . 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 1398 “ cima 4752 |
| 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 2214 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-v 2815 df-un 3215 df-in 3217 df-ss 3224 df-sn 3695 df-pr 3696 df-op 3698 df-br 4110 df-opab 4172 df-xp 4755 df-cnv 4757 df-dm 4759 df-rn 4760 df-res 4761 df-ima 4762 |
| This theorem is referenced by: imaeq12d 5102 nfimad 5110 elimasng 5130 ressn 5303 foima 5595 f1imacnv 5631 fvco2 5746 fsn2 5851 fncofn 5862 resfunexg 5905 funfvima3 5920 funiunfvdm 5936 isoselem 5993 fnexALT 6304 suppsnopdc 6450 suppcofn 6466 imacosuppfn 6468 eceq1 6802 uniqs2 6829 ecinxp 6844 mapsnd 6923 mapsn 6925 en2 7065 phplem4 7109 phplem4dom 7116 phplem4on 7122 sbthlem2 7228 isbth 7237 resunimafz0 11198 ennnfonelemg 13154 ennnfonelemhf1o 13164 ennnfonelemex 13165 ennnfonelemrn 13170 cnntr 15090 cnptopresti 15103 cnptoprest 15104 eupth2lem3fi 16471 eupth2fi 16474 |
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