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Mirrors > Home > MPE Home > Th. List > simp21 | Structured version Visualization version Unicode version |
Description: Simplification of doubly triple conjunction. (Contributed by NM, 17-Nov-2011.) |
Ref | Expression |
---|---|
simp21 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simp1 1008 |
. 2
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2 | 1 | 3ad2ant2 1030 |
1
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