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-rw-r--r--plugins/micromega/sos.ml6
1 files changed, 3 insertions, 3 deletions
diff --git a/plugins/micromega/sos.ml b/plugins/micromega/sos.ml
index eb3d81901c..35699f2193 100644
--- a/plugins/micromega/sos.ml
+++ b/plugins/micromega/sos.ml
@@ -1235,7 +1235,7 @@ let REAL_NONLINEAR_SUBST_PROVER =
match tm with
Var(_,Tyapp("real",[])) when not (mem tm fvs) -> Int 1,tm
| Comb(Comb(Const("real_mul",_),c),(Var(_,_) as t))
- when is_ratconst c & not (mem t fvs)
+ when is_ratconst c && not (mem t fvs)
-> rat_of_term c,t
| Comb(Comb(Const("real_add",_),s),t) ->
(try substitutable_monomial (union (frees t) fvs) s
@@ -1291,10 +1291,10 @@ let REAL_SOSFIELD =
with Failure _ -> REAL_SOS t
and is_inv =
let is_div = is_binop `(/):real->real->real` in
- fun tm -> (is_div tm or (is_comb tm & rator tm = inv_tm)) &
+ fun tm -> (is_div tm or (is_comb tm && rator tm = inv_tm)) &&
not(is_ratconst(rand tm)) in
let BASIC_REAL_FIELD tm =
- let is_freeinv t = is_inv t & free_in t tm in
+ let is_freeinv t = is_inv t && free_in t tm in
let itms = setify(map rand (find_terms is_freeinv tm)) in
let hyps = map (fun t -> SPEC t REAL_MUL_RINV) itms in
let tm' = itlist (fun th t -> mk_imp(concl th,t)) hyps tm in