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→Property query test
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Is [[Classes]] implemented in Unlambda?
{{#ask: [[Classes]] [[Implemented in language::Unlambda]] | format=count}} (1 = yes, 0 = no).
The following assumes a (currently non-existent) template "ignore" which takes an argument and ignores it. With that template, if the task [[Mutex]] is implemented in C++, nothing would be printed, otherwise a nested ask is executed, which just lists all requirements of Mutex (assuming I've got everything right):
{{#ask: [[Mutex]] [[Implemented in language::C++]] | format=template | template=ignore | default={{#ask: [[Mutex]] | ?requires}}}}
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