Description: An element of the value of the satisfaction predicate as function over wff codes in the model M and the binary relation E on M at the code U for a wff using e. , -/\ , A. is a valuation S :om --> M of the variables (v0 = ( S(/) ) , v_1 = ( S1o ) , etc.) so that U is true under the assignment S . (Contributed by AV, 29-Oct-2023)