Open patrick-nicodemus opened 1 year ago
I have experienced a similar issue but haven't found a way to produce a minimal example.
I always use sauto
instead of hammer
and sauto
usually gives me the same error when the goal is not in SProp
but the proof needs to use some SProp
in the context to derive a contradiction. A manual proof usually requires some juggling to ensure the SProp
hypotheses are destructed only when the goal is of sort SProp
. My guess is that CoqHammer is not yet able to handle this type of scenario properly.
SProp has not been tested too well - it was introduced after the creation of CoqHammer. It might be a CoqHammer bug in that it might use the Coq API in some unexpected way.
I have the following anomaly:
When the
hammer
tactic executes it yields the following anomaly:I guess this is a Coq bug and not a Coqhammer bug but I thought that you might be better equipped to figure out where the anomaly is coming from. Coqc version: The Coq Proof Assistant, version 8.17.0 compiled with OCaml 5.0.0