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Mirrors > Home > ILE Home > Th. List > imaeq2i | GIF version |
Description: Equality theorem for image. (Contributed by NM, 21-Dec-2008.) |
Ref | Expression |
---|---|
imaeq1i.1 | ⊢ 𝐴 = 𝐵 |
Ref | Expression |
---|---|
imaeq2i | ⊢ (𝐶 “ 𝐴) = (𝐶 “ 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | imaeq1i.1 | . 2 ⊢ 𝐴 = 𝐵 | |
2 | imaeq2 4984 | . 2 ⊢ (𝐴 = 𝐵 → (𝐶 “ 𝐴) = (𝐶 “ 𝐵)) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐶 “ 𝐴) = (𝐶 “ 𝐵) |
Colors of variables: wff set class |
Syntax hints: = wceq 1364 “ cima 4647 |
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 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2171 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2176 df-cleq 2182 df-clel 2185 df-nfc 2321 df-v 2754 df-un 3148 df-in 3150 df-ss 3157 df-sn 3613 df-pr 3614 df-op 3616 df-br 4019 df-opab 4080 df-xp 4650 df-cnv 4652 df-dm 4654 df-rn 4655 df-res 4656 df-ima 4657 |
This theorem is referenced by: cnvimarndm 5010 dmco 5155 fnimapr 5597 ssimaex 5598 imauni 5783 isoini2 5841 uniqs 6620 fiintim 6958 fidcenumlemrks 6983 fidcenumlemr 6985 nn0supp 9259 ennnfonelem1 12461 ennnfonelemhf1o 12467 ghmeqker 13227 retopbas 14500 |
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