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Mirrors > Home > NFE Home > Th. List > simp12 | Unicode version |
Description: Simplification of doubly triple conjunction. (Contributed by NM, 17-Nov-2011.) |
Ref | Expression |
---|---|
simp12 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simp2 956 |
. 2
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2 | 1 | 3ad2ant1 976 |
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 depends on definitions: df-bi 177 df-an 360 df-3an 936 |
This theorem is referenced by: simpl12 1031 simpr12 1040 simp112 1085 simp212 1094 simp312 1103 |
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