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Mirrors > Home > MPE Home > Th. List > syl6bbr | Structured version Visualization version Unicode version |
Description: A syllogism inference from two biconditionals. (Contributed by NM, 12-Mar-1993.) |
Ref | Expression |
---|---|
syl6bbr.1 |
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syl6bbr.2 |
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Ref | Expression |
---|---|
syl6bbr |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | syl6bbr.1 |
. 2
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2 | syl6bbr.2 |
. . 3
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3 | 2 | bicomi 207 |
. 2
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4 | 1, 3 | syl6bb 269 |
1
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