| Who Cites listify? |
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listify | Def f{m..n } == if n m nil else f(m).f{(m+1)..n } fi (recursive) |
| | Thm* T:Type, m,n: , f:({m..n } T). f{m..n } T List |
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le_int | Def i j ==  j< i |
| | Thm* i,j: . (i j)  |
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lt_int | Def i< j == if i<j true ; false fi |
| | Thm* i,j: . (i< j)  |
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bnot | Def  b == if b false else true fi |
| | Thm* b: .  b  |