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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 5104 | . 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 4759 |
| 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 2216 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-v 2817 df-un 3218 df-in 3220 df-ss 3227 df-sn 3701 df-pr 3702 df-op 3704 df-br 4116 df-opab 4178 df-xp 4762 df-cnv 4764 df-dm 4766 df-rn 4767 df-res 4768 df-ima 4769 |
| This theorem is referenced by: imaeq12d 5109 nfimad 5117 elimasng 5137 ressn 5310 foima 5602 f1imacnv 5638 fvco2 5753 fsn2 5858 fncofn 5869 resfunexg 5912 funfvima3 5927 funiunfvdm 5944 isoselem 6001 fnexALT 6315 suppsnopdc 6465 suppcofn 6481 imacosuppfn 6483 eceq1 6817 uniqs2 6844 ecinxp 6859 mapsnd 6938 mapsn 6940 en2 7080 phplem4 7124 phplem4dom 7131 phplem4on 7137 sbthlem2 7243 isbth 7252 resunimafz0 11228 ballotfilemscr 13212 ennnfonelemg 13244 ennnfonelemhf1o 13254 ennnfonelemex 13255 ennnfonelemrn 13260 cnntr 15222 cnptopresti 15235 cnptoprest 15236 eupth2lem3fi 16603 eupth2fi 16606 |
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