Meaning of the “why not” modality from linear type theory?
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05-11-2019 - |
Question
In linear type theory there is a modality written !
where !T
can be read as "infinite copies of T
".
According to ncatlab, there is a dual to this modality which is sometimes written ?T
and referred to as the "why not" modality. What is the meaning of this modality? How does ?T
behave as a type?
No correct solution
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