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Mirrors > Home > ILE Home > Th. List > rescnvcnv | Unicode version |
Description: The restriction of the double converse of a class. (Contributed by NM, 8-Apr-2007.) (Proof shortened by Andrew Salmon, 27-Aug-2011.) |
Ref | Expression |
---|---|
rescnvcnv |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cnvcnv2 4825 |
. . 3
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2 | 1 | reseq1i 4657 |
. 2
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3 | resres 4673 |
. 2
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4 | ssv 3029 |
. . . 4
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5 | sseqin2 3202 |
. . . 4
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6 | 4, 5 | mpbi 143 |
. . 3
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7 | 6 | reseq2i 4658 |
. 2
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8 | 2, 3, 7 | 3eqtri 2107 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 663 ax-5 1377 ax-7 1378 ax-gen 1379 ax-ie1 1423 ax-ie2 1424 ax-8 1436 ax-10 1437 ax-11 1438 ax-i12 1439 ax-bndl 1440 ax-4 1441 ax-14 1446 ax-17 1460 ax-i9 1464 ax-ial 1468 ax-i5r 1469 ax-ext 2065 ax-sep 3917 ax-pow 3969 ax-pr 3993 |
This theorem depends on definitions: df-bi 115 df-3an 922 df-tru 1288 df-nf 1391 df-sb 1688 df-eu 1946 df-mo 1947 df-clab 2070 df-cleq 2076 df-clel 2079 df-nfc 2212 df-ral 2358 df-rex 2359 df-v 2612 df-un 2987 df-in 2989 df-ss 2996 df-pw 3403 df-sn 3423 df-pr 3424 df-op 3426 df-br 3807 df-opab 3861 df-xp 4398 df-rel 4399 df-cnv 4400 df-res 4404 |
This theorem is referenced by: cnvcnvres 4835 imacnvcnv 4836 resdm2 4862 resdmres 4863 coires1 4889 f1oresrab 5382 |
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