proposition: Lemma int_diff (a b c : Q) : int a b - int a c = int c b.
proof: Proof. apply minus_eq_plus. symmetry. rewrite (rings.plus_comm (int c b) (int a c)). pose proof (int_add a c b). apply H0. Qed.
imports: CoRN.algebra.RSetoid CoRN.metric2.Metric CoRN.metric2.UniformContinuity CoRN.model.reals.CRreal Coq.Unicode.Utf8 Coq.Program.Program CoRN.reals.fast.CRArith CoRN.reals.fast.CRabs CoRN.tactics.Qauto Coq.QArith.Qround CoRN.model.metric2.Qmetric CoRN.stdlib_omissions.P CoRN.stdlib_omissions.Z CoRN.stdlib_omissions.Q CoRN.stdlib_omissions.N CoRN.ode.metric CoRN.ode.FromMetric2 CoRN.ode.SimpleIntegration MathClasses.misc.propholds