23 lines
639 B
Plaintext
23 lines
639 B
Plaintext
var x = Set(1, 2, 3);
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5..7 -> each { |i| x += i };
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var y = Set(1, 2, 4, x);
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say "set x is: #{x}";
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say "set y is: #{y}";
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[1,2,3,4,x].each { |elem|
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say ("#{elem} is ", elem ∈ y ? '' : 'not', " in y");
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}
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var (w, z);
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say ("union: ", x ∪ y);
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say ("intersect: ", x ∩ y);
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say ("z = x ∖ y = ", z = (x ∖ y) );
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say ("y is ", x ⊆ y ? "" : "not ", "a subset of x");
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say ("z is ", x ⊆ z ? "" : "not ", "a subset of x");
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say ("z = (x ∪ y) ∖ (x ∩ y) = ", z = ((x ∪ y) ∖ (x ∩ y)));
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say ("w = x ^ y = ", w = (x ^ y));
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say ("w is ", w ≡ z ? "" : "not ", "equal to z");
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say ("w is ", w ≡ x ? "" : "not ", "equal to x");
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