Who Cites dequiv?
dequiv	Def DecidableEquiv == T:TypeE:TTEquivRel(T)((_1 E _2))Top
	Thm* DecidableEquiv Type{i'}
top	Def Top == Void given Void
	Thm* Top Type
assert	Def b == if b True else False fi
	Thm* b:. b Prop
equiv_rel	Def EquivRel x,y:T. E(x;y) == Refl(T;x,y.E(x;y)) & (Sym x,y:T. E(x;y)) & (Trans x,y:T. E(x;y))
	Thm* T:Type, E:(TTProp). (EquivRel x,y:T. E(x,y)) Prop
trans	Def Trans x,y:T. E(x;y) == a,b,c:T. E(a;b) E(b;c) E(a;c)
	Thm* T:Type, E:(TTProp). (Trans x,y:T. E(x,y)) Prop
sym	Def Sym x,y:T. E(x;y) == a,b:T. E(a;b) E(b;a)
	Thm* T:Type, E:(TTProp). (Sym x,y:T. E(x,y)) Prop
refl	Def Refl(T;x,y.E(x;y)) == a:T. E(a;a)
	Thm* T:Type, E:(TTProp). Refl(T;x,y.E(x,y)) Prop

Syntax:

DecidableEquiv

has structure:

dequiv{i:l}

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