feat: add Decidable (∃ i, P i) #8734
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algebraic-dev
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Jun 18, 2025
This PR adds the missing instance ``` instance decidableExistsFin (P : Fin n → Prop) [DecidablePred P] : Decidable (∃ i, P i) ```
wkrozowski
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Jun 24, 2025
This PR adds the missing instance ``` instance decidableExistsFin (P : Fin n → Prop) [DecidablePred P] : Decidable (∃ i, P i) ```
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This PR adds the missing instance