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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 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | r19.41v 2626 | . 2 | |
2 | ancom 264 | . . 3 | |
3 | 2 | rexbii 2477 | . 2 |
4 | ancom 264 | . 2 | |
5 | 1, 3, 4 | 3bitr4i 211 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 103 wb 104 wrex 2449 |
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 1440 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-4 1503 ax-17 1519 ax-ial 1527 |
This theorem depends on definitions: df-bi 116 df-tru 1351 df-nf 1454 df-rex 2454 |
This theorem is referenced by: ceqsrexbv 2861 ceqsrex2v 2862 2reuswapdc 2934 iunrab 3920 iunin2 3936 iundif2ss 3938 iunopab 4266 elxp2 4629 cnvuni 4797 elunirn 5745 f1oiso 5805 oprabrexex2 6109 genpdflem 7469 1idprl 7552 1idpru 7553 ltexprlemm 7562 rexuz2 9540 4fvwrd4 10096 divalgb 11884 |
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