Who Cites dequiv?
dequiv	Def DecidableEquiv == T:TypeE:TTEquivRel(T)((_1 E _2))Top
	Thm* DecidableEquiv Type{i'}
assert	Def b == if b True else False fi
	Thm* b:. b Prop
carrier	Def |S| == 1of(S)
	Thm* S:Structure. |S| Type
eq_dequiv	Def =(DE) == 1of(2of(DE))
	Thm* E:DecidableEquiv. =(E) |E||E|
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
pi1	Def 1of(t) == t.1
	Thm* A:Type, B:(AType), p:(a:AB(a)). 1of(p) A
top	Def Top == Void given Void
	Thm* Top Type
pi2	Def 2of(t) == t.2
	Thm* A:Type, B:(AType), p:(a:AB(a)). 2of(p) B(1of(p))
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

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