A function ?f is continuous at the point ?p. This definition needs work. It will be something like this (forall (?x ?epsilon) (=> (< (norm (value ?f ?p) (value ?f ?x)) ?epsilon) (exists (?delta) (< (norm (- ?x ?p) ?delta)))))
(forall (?x ?epsilon) (=> (< (norm (value ?f ?p) (value ?f ?x)) ?epsilon) (exists (?delta) (< (norm (- ?x ?p) ?delta)))))