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Mirrors > Home > ILE Home > Th. List > 3ancomb | Unicode version |
Description: Commutation law for triple conjunction. (Contributed by NM, 21-Apr-1994.) |
Ref | Expression |
---|---|
3ancomb |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3ancoma 985 |
. 2
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2 | 3anrot 983 |
. 2
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3 | 1, 2 | bitri 184 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 |
This theorem depends on definitions: df-bi 117 df-3an 980 |
This theorem is referenced by: 3simpb 995 addcanprg 7614 elioore 9910 pcgcd 12322 ablsubsub23 13081 xmetrtri 13769 |
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