Don't both with Axioms_of_first-order_logic_in_terms_of_substitution_built_on_equality.ghi at least for now.
Don't both with Axioms_of_first-order_logic_in_terms_of_substitution_built_on_equality.ghi at least for now.

raphlinus/ghilbert,raphlinus/ghilbert,raphlinus/ghilbert,raphlinus/ghilbert