j
[i / upto(i+1;j)] else nil fi (recursive)
i,j:
. upto(i;j) 
{i..j
} Listj == if i < j true ; false fii,j:
. (i < j) 
| Who Cites upto? | |
| upto | Def upto(i;j) == if i < j [i / upto(i+1;j)] else nil fi (recursive) |
| Thm* i,j:. upto(i;j) {i..j} List | |
| lt_int | Def i < j == if i < j true ; false fi |
| Thm* i,j:. (i < j) |
| Syntax: | upto(i;j) | has structure: | upto(i; j) |
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