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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 5102 | . 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 4757 |
| 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 3700 df-pr 3701 df-op 3703 df-br 4115 df-opab 4177 df-xp 4760 df-cnv 4762 df-dm 4764 df-rn 4765 df-res 4766 df-ima 4767 |
| This theorem is referenced by: imaeq12d 5107 nfimad 5115 elimasng 5135 ressn 5308 foima 5600 f1imacnv 5636 fvco2 5751 fsn2 5856 fncofn 5867 resfunexg 5910 funfvima3 5925 funiunfvdm 5942 isoselem 5999 fnexALT 6313 suppsnopdc 6463 suppcofn 6479 imacosuppfn 6481 eceq1 6815 uniqs2 6842 ecinxp 6857 mapsnd 6936 mapsn 6938 en2 7078 phplem4 7122 phplem4dom 7129 phplem4on 7135 sbthlem2 7241 isbth 7250 resunimafz0 11223 ballotfilemscr 13206 ennnfonelemg 13238 ennnfonelemhf1o 13248 ennnfonelemex 13249 ennnfonelemrn 13254 cnntr 15216 cnptopresti 15229 cnptoprest 15230 eupth2lem3fi 16597 eupth2fi 16600 |
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