Make `instance Semigroup Usage` do addition

robrix / path

A lambda calculus to explore type-directed program synthesis.

BSD 3-Clause "New" or "Revised" License

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Closed glaebhoerl closed 5 years ago

glaebhoerl commented 5 years ago

Just idly browsing and happened upon this, which looked slightly off. Feel free to close if I've misapprehended something :)