admit (Definition), admit admit, admit_use Admitted (Definition), admit Admitted, admit_use compute, compute compute, compute_simpl Definition (First use), match Eval, compute Example, Example Inductive, Inductive_first Inductive, nat Type inference, Type_inference reflexivity, reflexivity reflexivity, proof_by_simplification Extraction, Extraction_first Pattern Matching, match match, match match, nat Function Types, function_types Check, function_types Module, Module Natural Numbers, nat Constructor, nat Inductive Definition, nat Fixpoint, Fixpoint Recursive Function, Fixpoint Simplification, simplification _,wildcard Wildcard Pattern, wildcard simpl, compute_simpl Theorem, theorem Lemma, theorem Fact, theorem Remark, theorem forall, theorem intros, theorem Tactics, theorem Context, theorem Goal, theorem rewrite, proof_by_rewriting destruct, proof_by_case_analysis "as" clause, proof_by_case_analysis Notation, notation1 Notation, notation2 Structural Recursion, structural_recursion