| Some definitions of interest. |
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iff | Def P Q == (P Q) & (P Q) |
| | Thm* A,B:Prop. (A B) Prop |
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int_upper | Def {i...} == {j:| ij } |
| | Thm* n:. {n...} Type |
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wellfounded | Def WellFnd{i}(A;x,y.R(x;y))
Def == P:(AProp). (j:A. (k:A. R(k;j) P(k)) P(j)) {n:A. P(n)} |
| | Thm* A:Type{i}, r:(AAProp{i}). WellFnd{i}(A;x,y.r(x,y)) Prop{i'} |