Nuprl - Some Definitions

div_nrel	`Def Div(a;n;q) == nq a < n(q+1)` `Thm* a:, n:, q:. Div(a;n;q) Prop`
int_seg	`Def {i..j} == {k:\| i k < j }` `Thm* m,n:. {m..n} Type`
lelt	`Def i j < k == ij & j < k`
nat_plus	`Def == {i:\| 0 < i }` `Thm* Type`
le	`Def AB == B < A` `Thm* i,j:. ij Prop`
not	`Def A == A False` `Thm* A:Prop. (A) Prop`

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