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Mirrors > Home > ILE Home > Th. List > syl5 | Unicode version |
Description: A syllogism rule of inference. The second premise is used to replace the second antecedent of the first premise. (Contributed by NM, 5-Aug-1993.) (Proof shortened by Wolf Lammen, 25-May-2013.) |
Ref | Expression |
---|---|
syl5.1 | |
syl5.2 |
Ref | Expression |
---|---|
syl5 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | syl5.1 | . . 3 | |
2 | syl5.2 | . . 3 | |
3 | 1, 2 | syl5com 29 | . 2 |
4 | 3 | com12 30 | 1 |
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