fact: Definition r_of_pq {R : realType} (p q : {prob R}) : {prob R} := locked (Prob.mk (r_of_pq_subproof p q)).
imports: mathcomp(all_ssreflect ssralg ssrnum) mathcomp(reals normedtype) mathcomp(mathcomp_extra boolp) mathcomp(lra ring Rstruct)