Nuprl - Some Definitions

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	Some definitions of interest.

coprime	Def CoPrime(a,b) == GCD(a;b;1)

	Thm* a,b:. CoPrime(a,b) Prop

eqmod	Def a = b mod m == m \| a-b

	Thm* m,a,b:. (a = b mod m) Prop

gcd_p	Def GCD(a;b;y) == y \| a & y \| b & (z:. z \| a & z \| b z \| y)

	Thm* a,b,y:. GCD(a;b;y) Prop

nat_plus	Def == {i:\| 0<i }

	Thm* Type

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