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Mirrors > Home > NFE Home > Th. List > nsyl3 | Unicode version |
Description: A negated syllogism inference. (Contributed by NM, 1-Dec-1995.) |
Ref | Expression |
---|---|
nsyl3.1 |
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nsyl3.2 |
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Ref | Expression |
---|---|
nsyl3 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nsyl3.2 |
. 2
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2 | nsyl3.1 |
. . 3
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3 | 2 | a1i 10 |
. 2
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4 | 1, 3 | mt2d 109 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem is referenced by: con2i 112 nsyl 113 ax9 1949 cesare 2307 cesaro 2311 |
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