I just saw Damian Convway in person last night and was floored by what he was able to do with his definitional/intensional programming module
Quantum::Superpositions
However, once back at my computer, some of the examples in the documentation did not work as advertised.
It states that for the following operations:
if (all(1,2,3)*any(5,6) < 21)
{ print "no alcohol" }
if (all(1,2,3)*any(5,6) < 18)
{ print "no entry" }
if (any(1,2,3)*all(5,6) < 18)
{ print "under-age" }
That "no alcohol" and "under-age" are printed. But in fact, "no alcohol" and "no-entry" are printed
If you do some diagnostics and instrument the program:
$R1 = all(1,2,3)*any(5,6);
$R2 = all(1,2,3)*any(5,6);
$R3 = any(1,2,3)*all(5,6);
print $R1;
print "\n";
print $R2;
print "\n";
print $R3;
print "\n";
You get the following output:
all(any(5,6),any(10,12),any(15,18))
all(any(5,6),any(10,12),any(15,18))
any()
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