7b8e51e025
This PR adds a missing word ("be") to the error message catching
natural-numbers-game-like uses of induction that was introduced in
#11347.
8 lines
951 B
Text
8 lines
951 B
Text
notNaturalNumbersGame.lean:6:20: error: unknown tactic
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notNaturalNumbersGame.lean:6:14-6:20: error(lean.inductionWithNoAlts): Invalid syntax for induction tactic: The `with` keyword must be followed by a tactic or by an alternative (e.g. `| zero =>`), but here it is followed by the identifier `n`.
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notNaturalNumbersGame.lean:13:16: error: unknown tactic
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notNaturalNumbersGame.lean:13:10-13:16: error(lean.inductionWithNoAlts): Invalid syntax for case analysis tactic: The `with` keyword must be followed by a tactic or by an alternative (e.g. `| zero =>`), but here it is followed by the identifier `n`.
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notNaturalNumbersGame.lean:22:2-22:11: error: Alternative `zero` has not been provided
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notNaturalNumbersGame.lean:22:2-22:11: error: Alternative `succ` has not been provided
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notNaturalNumbersGame.lean:25:2-25:7: error: Alternative `zero` has not been provided
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notNaturalNumbersGame.lean:25:2-25:7: error: Alternative `succ` has not been provided
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