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Questions tagged [substructural-types]

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11 votes
1 answer
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What is "graded modality" in type theory?

I'm referring to these papers: Graded Modal Dependent Type Theory (The Gerty Language) Quantitative program reasoning with graded modal types (The Granule Language) At first glance, it seems graded ...
tarzh's user avatar
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9 votes
1 answer
343 views

Why does ATTAPL's linear product introduction rule not delete the objects from the context?

In Chapter 1 of Advanced Topics in Types and Programming Languages, the following rule is presented for the introduction of a product in a linear/unrestricted type system: ($\circ$ is context ...
blueberry's user avatar
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12 votes
2 answers
185 views

How do linear types interact with features that may change the normal control flow?

Linear types are quite a powerful feature of type systems that ensure that "linear values" are used exactly once. For example, ...
Luiz Felipe's user avatar