j.if j=
i
v else a[j] fi > j == if i=j true ; false fi
i,j:
. (i=j) 
A:Type, B:(A
Type), p:(a:A
B(a)). 2of(p) B(1of(p))A:Type, B:(AType), p:(a:AB(a)). 1of(p) A| Who Cites array-update? | |
| array-update | Def a[i:=v] == < |a|,j.if j=i v else a[j] fi > |
| array-select | Def a[i] == 2of(a)(i) |
| eq_int | Def i=j == if i=j true ; false fi |
| Thm* i,j:. (i=j) | |
| array-length | Def |a| == 1of(a) |
| pi2 | Def 2of(t) == t.2 |
| Thm* A:Type, B:(AType), p:(a:AB(a)). 2of(p) B(1of(p)) | |
| pi1 | Def 1of(t) == t.1 |
| Thm* A:Type, B:(AType), p:(a:AB(a)). 1of(p) A |
| Syntax: | a[i:=v] | has structure: | array-update(a; i; v) |
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