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Results tagged with lean4
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user 57
Lean 4 is the latest major version of the Lean theorem prover by Microsoft Research. Use this tag for questions specific to Lean 4; if it's about Lean in general, use the tag (lean).
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Lean4 instance management
A common solution to this problem is to define a type synonym with its own instances. You can find this throughout mathlib, for example with Multiplicative and Additive to switch whether to use a mult …
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