Compat.new_axiom : (string * term) -> thm
Found in the hol88 library. If tm is a term of type bool, a call
new_axiom("name",tm) creates a theorem
|- !x1..xn. tm
and stores it away in the theory file. Note that all free variables
in tm are generalized automatically before the axiom is set up.
- new_theory "gurk"; () : unit - new_axiom("untrue",--`x = 1`--)); |- !x. x = 1