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Mirrors > Home > ILE Home > Th. List > 19.45 | Unicode version |
Description: Theorem 19.45 of [Margaris] p. 90. (Contributed by NM, 12-Mar-1993.) |
Ref | Expression |
---|---|
19.45.1 |
Ref | Expression |
---|---|
19.45 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 19.43 1607 | . 2 | |
2 | 19.45.1 | . . . 4 | |
3 | 2 | 19.9 1623 | . . 3 |
4 | 3 | orbi1i 752 | . 2 |
5 | 1, 4 | bitri 183 | 1 |
Colors of variables: wff set class |
Syntax hints: wb 104 wo 697 wnf 1436 wex 1468 |
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-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-4 1487 ax-ial 1514 |
This theorem depends on definitions: df-bi 116 df-nf 1437 |
This theorem is referenced by: eeor 1673 |
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