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Mirrors > Home > ILE Home > Th. List > syl6 | Unicode version |
Description: A syllogism rule of inference. The second premise is used to replace the consequent of the first premise. (Contributed by NM, 5-Aug-1993.) (Proof shortened by Wolf Lammen, 30-Jul-2012.) |
Ref | Expression |
---|---|
syl6.1 | |
syl6.2 |
Ref | Expression |
---|---|
syl6 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | syl6.1 | . 2 | |
2 | syl6.2 | . . 3 | |
3 | 2 | a1i 9 | . 2 |
4 | 1, 3 | sylcom 25 | 1 |
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