diff options
Diffstat (limited to 'spartan/core/eqsubst.ML')
| -rw-r--r-- | spartan/core/eqsubst.ML | 36 |
1 files changed, 22 insertions, 14 deletions
diff --git a/spartan/core/eqsubst.ML b/spartan/core/eqsubst.ML index ea6f098..e7ecf63 100644 --- a/spartan/core/eqsubst.ML +++ b/spartan/core/eqsubst.ML @@ -416,19 +416,27 @@ fun eqsubst_asm_tac ctxt occs thms i st = should be done to an assumption, false = apply to the conclusion of the goal) as well as the theorems to use *) val _ = - Theory.setup - (Method.setup \<^binding>\<open>sub\<close> - (Scan.lift (Args.mode "asm" -- Scan.optional (Args.parens (Scan.repeat Parse.nat)) [0]) -- - Attrib.thms >> (fn ((asm, occs), inthms) => fn ctxt => - SIMPLE_METHOD' ((if asm then eqsubst_asm_tac else eqsubst_tac) ctxt occs inthms))) - "single-step substitution" - #> - (Method.setup \<^binding>\<open>subst\<close> - (Scan.lift (Args.mode "asm" -- Scan.optional (Args.parens (Scan.repeat Parse.nat)) [0]) -- - Attrib.thms >> (fn ((asm, occs), inthms) => fn ctxt => - SIMPLE_METHOD' (SIDE_CONDS - ((if asm then eqsubst_asm_tac else eqsubst_tac) ctxt occs inthms) - ctxt))) - "single-step substitution with auto-typechecking")) + let + val parser = + Scan.lift (Args.mode "asm" + -- Scan.optional (Args.parens (Scan.repeat Parse.nat)) [0]) + -- Attrib.thms + fun eqsubst_asm_ctac occs inthms = + CONTEXT_TACTIC' (fn ctxt => eqsubst_asm_tac ctxt occs inthms) + fun eqsubst_ctac occs inthms = + CONTEXT_TACTIC' (fn ctxt => eqsubst_tac ctxt occs inthms) + in + Theory.setup ( + Method.setup \<^binding>\<open>sub\<close> + (parser >> (fn ((asm, occs), inthms) => fn ctxt => SIMPLE_METHOD' ( + (if asm then eqsubst_asm_tac else eqsubst_tac) ctxt occs inthms))) + "single-step substitution" #> + Method.setup \<^binding>\<open>subst\<close> + (parser >> (fn ((asm, occs), inthms) => K (CONTEXT_METHOD ( + CHEADGOAL o SIDE_CONDS + ((if asm then eqsubst_asm_ctac else eqsubst_ctac) occs inthms))))) + "single-step substitution with automatic discharge of side conditions" + ) + end end; |