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Mirrors > Home > ILE Home > Th. List > cnveqi | GIF version |
Description: Equality inference for converse. (Contributed by NM, 23-Dec-2008.) |
Ref | Expression |
---|---|
cnveqi.1 | ⊢ 𝐴 = 𝐵 |
Ref | Expression |
---|---|
cnveqi | ⊢ ◡𝐴 = ◡𝐵 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cnveqi.1 | . 2 ⊢ 𝐴 = 𝐵 | |
2 | cnveq 4708 | . 2 ⊢ (𝐴 = 𝐵 → ◡𝐴 = ◡𝐵) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ ◡𝐴 = ◡𝐵 |
Colors of variables: wff set class |
Syntax hints: = wceq 1331 ◡ccnv 4533 |
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 2119 |
This theorem depends on definitions: df-bi 116 df-nf 1437 df-sb 1736 df-clab 2124 df-cleq 2130 df-clel 2133 df-nfc 2268 df-in 3072 df-ss 3079 df-br 3925 df-opab 3985 df-cnv 4542 |
This theorem is referenced by: mptcnv 4936 cnvxp 4952 xp0 4953 imainrect 4979 cnvcnv 4986 mptpreima 5027 co01 5048 coi2 5050 cocnvres 5058 fcoi1 5298 fun11iun 5381 f1ocnvd 5965 cnvoprab 6124 f1od2 6125 mapsncnv 6582 sbthlemi8 6845 caseinj 6967 djuinj 6984 fisumcom2 11200 |
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