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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 4877 | . 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 1331 “ cima 4542 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-v 2688 df-un 3075 df-in 3077 df-ss 3084 df-sn 3533 df-pr 3534 df-op 3536 df-br 3930 df-opab 3990 df-xp 4545 df-cnv 4547 df-dm 4549 df-rn 4550 df-res 4551 df-ima 4552 |
This theorem is referenced by: cnvimarndm 4903 dmco 5047 fnimapr 5481 ssimaex 5482 imauni 5662 isoini2 5720 uniqs 6487 fiintim 6817 fidcenumlemrks 6841 fidcenumlemr 6843 nn0supp 9029 ennnfonelem1 11920 ennnfonelemhf1o 11926 retopbas 12692 |
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