Who Cites modulus?
modulus	Def a mod n == if 0aa rem n ;((-a) rem n)=00 else n-((-a) rem n) fi
	Thm* a:, n:. (a mod n)
eq_int	Def i=j == if i=j true ; false fi
	Thm* i,j:. i=j
le_int	Def ij == j < i
	Thm* i,j:. ij
nat	Def == {i:| 0i }
	Thm* Type
nat_plus	Def == {i:| 0 < i }
	Thm* Type
lt_int	Def i < j == if i < j true ; false fi
	Thm* i,j:. i < j
bnot	Def b == if b false else true fi
	Thm* b:. b
le	Def AB == B < A
	Thm* i,j:. ij Prop
not	Def A == A False
	Thm* A:Prop. (A) Prop

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