Cic.lazy_term option ->
pattern:ProofEngineTypes.lazy_pattern -> ProofEngineTypes.tactic
val whd : pattern:ProofEngineTypes.lazy_pattern -> ProofEngineTypes.tactic
Cic.lazy_term option ->
pattern:ProofEngineTypes.lazy_pattern -> ProofEngineTypes.tactic
val whd : pattern:ProofEngineTypes.lazy_pattern -> ProofEngineTypes.tactic