Search Mathlib for lemmas by type signature pattern
Loogle Search - Mathlib Type Signature Search Search Mathlib for lemmas by type signature pattern. When to Use Finding a lemma when you know the type shape but not the name Discovering what's available for a type (e.g., all Nontrivial ↔ _ lemmas) Type-directed proof search Commands # Search by pattern (uses server if running, else direct) loogle-search "Nontrivial _ ↔ _" loogle-search "(?a → ?b) → List ?a → List ?b" loogle-search "IsCyclic, center" # JSON output loogle-search "List.map" --json
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