| Goal: | |
| A : Type R : relation A S : relation A HR : Reflexive R x : A | |
| ============================ | |
| (relation_disjunction R S x x) | |
| DEBUG:Going to execute: | |
| PTRDEBUGTACfun => <coq-core.plugins.ltac::left@0> | |
| TcDebug (1) > /mnt/data1/2023/07/06/metacoq/utils/theories/MCRelations.v:209 | |