| Goal: | |
| A : Type | |
| P : tree A -> Type | |
| empty : P Empty | |
| node : forall l : tree A, | |
| P l -> | |
| forall (o : option A) (r : tree A), | |
| P r -> not_trivially_empty l o r -> P (Node l o r) | |
| l : tree' A | |
| x : A | |
| ============================ | |
| True | |
| DEBUG:Going to execute: | |
| PTRDEBUGTAC<coq-core.plugins.ltac::discriminate@0> | |
| TcDebug (2) > /home/mdupont/.opam/4.14.1/lib/coq/theories/Program/Tactics.vdiscriminates:102, Tactics (Coq.Program),/home/mdupont/.opam/4.14.1/lib/coq/theories/Program/Tactics.vprogram_simplify:306, Tactics (Coq.Program),/home/mdupont/.opam/4.14.1/lib/coq/user-contrib/Equations/Prop/Equations.v:25 | |