Definitions LogicSupplement Sections DiscrMathExt Doc
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Some definitions of interest.
equiv_relDef  EquivRel x,y:TE(x;y)
Def  == Refl(T;x,y.E(x;y)) & (Sym x,y:TE(x;y)) & (Trans x,y:TE(x;y))
Thm*  T:Type, E:(TTProp). (EquivRel x,y:TE(x,y))  Prop
iffDef  P  Q == (P  Q) & (P  Q)
Thm*  A,B:Prop. (A  B Prop

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Definitions LogicSupplement Sections DiscrMathExt Doc