diff options
| author | Josh Chen | 2020-05-22 15:43:14 +0200 |
|---|---|---|
| committer | Josh Chen | 2020-05-22 15:43:14 +0200 |
| commit | 720da0f918118388d114e09664b129d2b29be2b1 (patch) | |
| tree | e4411cceae3a790544e7bebb4eb7717c31e0fa63 /spartan/lib | |
| parent | 1571e03b7dc5c7e6f2a46be57a12dd0d25fea452 (diff) | |
some tweaks and comments, in preparation for general inductive type elimination
Diffstat (limited to '')
| -rw-r--r-- | spartan/lib/elimination.ML | 5 | ||||
| -rw-r--r-- | spartan/lib/focus.ML | 2 | ||||
| -rw-r--r-- | spartan/lib/tactics.ML | 3 |
3 files changed, 7 insertions, 3 deletions
diff --git a/spartan/lib/elimination.ML b/spartan/lib/elimination.ML index 85ce669..bd23c94 100644 --- a/spartan/lib/elimination.ML +++ b/spartan/lib/elimination.ML @@ -6,6 +6,7 @@ Type elimination automation. structure Elim = struct +(** Context data **) (* Elimination rule data *) structure Rules = Generic_Data ( type T = thm Termtab.table @@ -30,4 +31,8 @@ val _ = Theory.setup ( fn context => (rules (Context.proof_of context))) ) +(** General elimination-induction tactic **) + + + end diff --git a/spartan/lib/focus.ML b/spartan/lib/focus.ML index dd8d3d9..1d8de78 100644 --- a/spartan/lib/focus.ML +++ b/spartan/lib/focus.ML @@ -105,7 +105,7 @@ val schematic_subgoal_cmd = gen_schematic_subgoal Attrib.attribute_cmd val parser = opt_fact_binding - -- (Scan.option (\<^keyword>\<open>premises\<close> |-- Parse.!!! opt_fact_binding)) + -- (Scan.option (\<^keyword>\<open>prems\<close> |-- Parse.!!! opt_fact_binding)) -- for_params >> (fn ((a, b), c) => Toplevel.proofs (Seq.make_results o Seq.single o #2 o schematic_subgoal_cmd a b c)) diff --git a/spartan/lib/tactics.ML b/spartan/lib/tactics.ML index 0e09533..c72947a 100644 --- a/spartan/lib/tactics.ML +++ b/spartan/lib/tactics.ML @@ -104,8 +104,7 @@ fun intro_tac ctxt = SUBGOAL (fn (_, i) => SIDE_CONDS fun intros_tac ctxt = SUBGOAL (fn (_, i) => (CHANGED o REPEAT o CHANGED o intro_tac ctxt) i) -(* Basic elimination tactic *) -(*Only uses existing type judgments from the context +(*Basic elimination tactic, only uses existing type judgments from the context (performs no type synthesis)*) fun elims_tac opt_tm ctxt = case opt_tm of NONE => SUBGOAL (fn (_, i) => eresolve_tac ctxt (Elim.rules ctxt) i) |