Full Idea
Our rule of universal quantifier elimination (UE) lets us infer that any particular object has F from the premiss that all things have F. It is a natural extension of &E (and-elimination), as universal propositions generally affirm a complex conjunction.
Gist of Idea
Universal Elimination (UE) lets us infer that an object has F, from all things having F
Source
E.J. Lemmon (Beginning Logic [1965], 3.2)
Book Reference
Lemmon,E.J.: 'Beginning Logic' [Nelson 1979], p.105