auto - proof search Ltac - automated forward reasoning (hypothesis matching machinery) eauto, eapply - deferred instantiation of existentials Ltac macro Ltac inv H := inversion H; subst; clear H. (** later 宏: Ltac rwinv H1 H2 := rewrite H1 in H2; inv H2. (** later in the proof... **) rwinv H H2. match goal 调用宏 Ltac find_rwinv := match goal with H1: ? 可以看到最后只剩这种改写形式… 我们也把他们自动化了: Ltac find_eqn := match goal with H1: ∀x, ?P x → ?L = ?R, H2: ?
solve_by_inverts in LTac. (used to generate proof) LTac doesn’t have termination check.
Ltac solve_by_inverts n Ltac solve_by_inverts n := match goal with | H : ?
YashanDB支持LTAC(面向事务分析的列存表)和LSC(大规模存储列存表)两种列存表类型,分别满足实时分析和海量数据分析需求,助力BI系统应对实时查询与离线分析融合的挑战。
Ltac: scripting language for tactics (good for more sophisticated proof engineering) OCaml tactic scripting