Nuprl - Some Definitions

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	Some definitions of interest.

assert	Def b == if b True else False fi

	Thm* b:. b Prop

eq_int	Def i=j == if i=j true ; false fi

	Thm* i,j:. (i=j)

iff	Def P Q == (P Q) & (P Q)

	Thm* A,B:Prop. (A B) Prop

qdenom	Def q.den == 2of(q)

	Thm* q:. q.den

qnumer	Def q.num == 1of(q)

	Thm* q:. q.num

rat	Def ==

	Thm* Type

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