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Mirrors > Home > ILE Home > Th. List > ccase2 | Unicode version |
Description: Inference for combining cases. (Contributed by NM, 29-Jul-1999.) |
Ref | Expression |
---|---|
ccase2.1 | |
ccase2.2 | |
ccase2.3 |
Ref | Expression |
---|---|
ccase2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ccase2.1 | . 2 | |
2 | ccase2.2 | . . 3 | |
3 | 2 | adantr 261 | . 2 |
4 | ccase2.3 | . . 3 | |
5 | 4 | adantl 262 | . 2 |
6 | 4 | adantl 262 | . 2 |
7 | 1, 3, 5, 6 | ccase 871 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 97 wo 629 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-io 630 |
This theorem depends on definitions: df-bi 110 |
This theorem is referenced by: (None) |
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