| Some definitions of interest. |
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comment | Def Kind of comment: $kind == a |
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int_seg | Def {i..j} == {k:| i k < j } |
| | Thm* m,n:. {m..n} Type |
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int_upper | Def {i...} == {j:| ij } |
| | Thm* n:. {n...} Type |
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iter_via_intseg | Def Iter(f;u) i:{a..b}. e(i)
Def == if a<b f((Iter(f;u) i:{a..b-1}. e(i)),e(b-1)) else u fi
Def (recursive) |
| | Thm* f:(AAA), u:A, a,b:, e:({a..b}A). (Iter(f;u) i:{a..b}. e(i)) A |
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nat | Def == {i:| 0i } |
| | Thm* Type |
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not | Def A == A False |
| | Thm* A:Prop. (A) Prop |
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split_factor2 | Def split_factor2(g; x; y)(u)
Def == if u=x g(x)+g(xy) ; u=y g(y)+g(xy) ; u=xy 0 else g(u) fi |
| | Thm* k:{2...}, g:({2..k}), x,y:{2..k}.
Thm* xy<k split_factor2(g; x; y) {2..k} |