Goal:
  
  __x1 : BinNums.Z
  __wit := [] : list ZMicromega.ZArithProof
  __varmap := VarMap.Elt __x1 : VarMap.t BinNums.Z
  __ff := Tauto.IMPL
            (Tauto.A Tauto.isProp
               {|
                 RingMicromega.Flhs := EnvRing.PEc BinNums.Z0;
                 RingMicromega.Fop := RingMicromega.OpLe;
                 RingMicromega.Frhs := EnvRing.PEX BinNums.xH
               |} tt) None
            (Tauto.A Tauto.isProp
               {|
                 RingMicromega.Flhs := EnvRing.PEc BinNums.Z0;
                 RingMicromega.Fop := RingMicromega.OpLt;
                 RingMicromega.Frhs :=
                   EnvRing.PEadd (EnvRing.PEX BinNums.xH)
                     (EnvRing.PEc (BinNums.Zpos BinNums.xH))
               |} tt)
       : Tauto.BFormula (RingMicromega.Formula BinNums.Z) Tauto.isProp
  ============================
   (BinInt.Z.le BinNums.Z0 __x1
    → BinInt.Z.lt BinNums.Z0 (BinInt.Z.add __x1 (BinNums.Zpos BinNums.xH)))


DEBUG:Going to execute:
exact
(ZMicromega.ZTautoChecker_sound __ff __wit
   (eq_refl <: ZMicromega.ZTautoChecker __ff __wit = true)
   (VarMap.find BinNums.Z0 __varmap))