(unifier '(?x) '(?x) '(1))
This will fail which is surprising.
fixed, http://github.com/clojure/core.logic/commit/07292792bec2694dafd4bf62b1c96580d5d270d3
fixed, http://github.com/clojure/core.logic/commit/07292792bec2694dafd4bf62b1c96580d5d270d3