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Mirrors > Home > ILE Home > Th. List > syl12anc | Unicode version |
Description: Syllogism combined with contraction. (Contributed by Jeff Hankins, 1-Aug-2009.) |
Ref | Expression |
---|---|
sylXanc.1 |
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sylXanc.2 |
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sylXanc.3 |
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syl12anc.4 |
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Ref | Expression |
---|---|
syl12anc |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sylXanc.1 |
. . 3
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2 | sylXanc.2 |
. . 3
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3 | sylXanc.3 |
. . 3
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4 | 1, 2, 3 | jca32 310 |
. 2
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5 | syl12anc.4 |
. 2
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6 | 4, 5 | syl 14 |
1
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