fact: Definition tease_n {M : altMonad} (h p : door) : M door := arbitrary def (doors \\ [:: h; p]).
imports: Reals Lra mathcomp(all_ssreflect ssralg ssrnum) mathcomp(mathcomp_extra reals Rstruct) infotheo(ssrR realType_ext Reals_ext proba) monae_lib hierarchy monad_lib fail_lib proba_lib