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Mirrors > Home > ILE Home > Th. List > 19.19 | Unicode version |
Description: Theorem 19.19 of [Margaris] p. 90. (Contributed by NM, 12-Mar-1993.) |
Ref | Expression |
---|---|
19.19.1 |
Ref | Expression |
---|---|
19.19 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 19.19.1 | . . 3 | |
2 | 1 | 19.9 1608 | . 2 |
3 | exbi 1568 | . 2 | |
4 | 2, 3 | syl5bbr 193 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wb 104 wal 1314 wnf 1421 wex 1453 |
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 1408 ax-gen 1410 ax-ie1 1454 ax-ie2 1455 ax-4 1472 ax-ial 1499 |
This theorem depends on definitions: df-bi 116 df-nf 1422 |
This theorem is referenced by: (None) |
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