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4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
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27 let absurd_tac ~term ~status:((proof,goal) as status) =
29 let module U = UriManager in
30 let module P = PrimitiveTactics in
31 let _,metasenv,_,_ = proof in
32 let _,context,ty = List.find (function (m,_,_) -> m=goal) metasenv in
33 if ((CicTypeChecker.type_of_aux' metasenv context term) = (C.Sort C.Prop))
35 ~term:(C.Appl [(C.Const ((U.uri_of_string "cic:/Coq/Init/Logic/absurd.con") , [] )) ; term ; ty]) ~status
36 else raise (ProofEngineTypes.Fail "Absurd: Not a Proposition")
40 let contradiction_tac ~status =
42 let module U = UriManager in
43 let module P = PrimitiveTactics in
44 let module T = Tacticals in
49 ~start: (EliminationTactics.elim_type_tac
50 ~term:(C.MutInd (U.uri_of_string "cic:/Coq/Init/Logic/False.ind") 0 [] ))
51 ~continuation: VariousTactics.assumption_tac)
55 (* Questa era in fourierR.ml
56 (* !!!!! fix !!!!!!!!!! *)
57 let contradiction_tac ~status:(proof,goal)=
59 ~start:(PrimitiveTactics.intros_tac ~name:"bo?" ) (*inutile sia questo che quello prima della chiamata*)
60 ~continuation:(Tacticals.then_
61 ~start:(VariousTactics.elim_type_tac ~term:_False)
62 ~continuation:(assumption_tac))