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Mirrors > Home > ILE Home > Th. List > r19.42v | Unicode version |
Description: Restricted version of Theorem 19.42 of [Margaris] p. 90. (Contributed by NM, 27-May-1998.) |
Ref | Expression |
---|---|
r19.42v |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | r19.41v 2590 |
. 2
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2 | ancom 264 |
. . 3
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3 | 2 | rexbii 2445 |
. 2
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4 | ancom 264 |
. 2
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5 | 1, 3, 4 | 3bitr4i 211 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() |
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-5 1424 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-4 1488 ax-17 1507 ax-ial 1515 |
This theorem depends on definitions: df-bi 116 df-tru 1335 df-nf 1438 df-rex 2423 |
This theorem is referenced by: ceqsrexbv 2820 ceqsrex2v 2821 2reuswapdc 2892 iunrab 3868 iunin2 3884 iundif2ss 3886 iunopab 4211 elxp2 4565 cnvuni 4733 elunirn 5675 f1oiso 5735 oprabrexex2 6036 genpdflem 7339 1idprl 7422 1idpru 7423 ltexprlemm 7432 rexuz2 9403 4fvwrd4 9948 divalgb 11658 |
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