fact: Hypothesis f0_bound: forall x:SubspaceTopology F, -1 <= f0 x <= 1.
imports: RTopology SeparatednessAxioms RFuncContinuity UniformTopology ContinuousFactorization Coq(Description Max Psatz ClassicalChoice) ZornsLemma(Proj1SigInjective) UrysohnsLemma