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Related theorems
Unicode version
Syntax Definition syn-bnj17 13008
Description: Extend wff notation with the 4-way conjunction.
Hypotheses
Ref Expression
wph wff ph
wps wff ps
wch wff ch
wth wff th
Assertion
Ref Expression
syn-bnj17 wff (ph /\ ps /\ ch /\ th)
See definition df-bnj17 13009 for more information.
Colors of variables: wff set class
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