diff options
Diffstat (limited to 'contrib/setoid_ring/newring.ml4')
| -rw-r--r-- | contrib/setoid_ring/newring.ml4 | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/contrib/setoid_ring/newring.ml4 b/contrib/setoid_ring/newring.ml4 index dd79801d..3d022add 100644 --- a/contrib/setoid_ring/newring.ml4 +++ b/contrib/setoid_ring/newring.ml4 @@ -8,7 +8,7 @@ (*i camlp4deps: "parsing/grammar.cma" i*) -(*i $Id: newring.ml4 11094 2008-06-10 19:35:23Z herbelin $ i*) +(*i $Id: newring.ml4 11282 2008-07-28 11:51:53Z msozeau $ i*) open Pp open Util @@ -452,11 +452,14 @@ let (theory_to_obj, obj_to_theory) = let setoid_of_relation env a r = - lapp coq_mk_Setoid - [|a ; r ; - Class_tactics.reflexive_proof env a r ; - Class_tactics.symmetric_proof env a r ; - Class_tactics.transitive_proof env a r |] + try + lapp coq_mk_Setoid + [|a ; r ; + Class_tactics.reflexive_proof env a r ; + Class_tactics.symmetric_proof env a r ; + Class_tactics.transitive_proof env a r |] + with Not_found -> + error "cannot find setoid relation" let op_morph r add mul opp req m1 m2 m3 = lapp coq_mk_reqe [| r; add; mul; opp; req; m1; m2; m3 |] |