fact: Definition CommonChaslesRefinement {R : ConstructiveReals} {a b : CRcarrier R} (P Q : @IntervalPartition R a b) : Prop := exists (ccr_subseqP : nat -> nat) (ccr_subseqQ : nat -> nat) (ccr_refinement : @IntervalPartition R a b), IntervalPartitionRefinement a b P ccr_refinement ccr_subseqP /\ IntervalPartitionRefinement a b Q ccr_refinement ccr_subseqQ.
imports: List Permutation Orders Sorted Mergesort QArith Qpower ConstructiveReals ConstructiveAbs ConstructiveMinMax ConstructiveSum ConstructiveLimits ConstructiveRcomplete ConstructiveDiagonal ConstructiveUniformCont