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D.14.8.5 isElement
Procedure from librarysets.lib (see sets_lib).
- Usage:
- isElement(a,M); M set a def
- Return:
- bool, 1 if a is an element of M, 0 if not
LIB "sets.lib";
int i=1;
int j=5;
list k =1,2,3,4;
Set M=k;
i;
==> 1
j;
==> 5
M;
==> {4; 3; 2; 1}
==> Set with 4 elements
==>
isElement(i,M);
==> 1
isElement(j,M);
==> 0
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