Implementation of universal quantifiers
Universal Quantification: Function: for_all(expr,variables,condition)
· ∀ xexpr which says that expr holds for all values of x for this the
function looks like for_all(expr,var) where var=Tuple(x)
this returns an assertion based on the expr and the values of x.
· ∀{x1,x2,...}expr which says that expr holds for all values of x
for this the function looks like for_all(expr,var) where var=(x1,x2,x3….)
this returns an assertion based on the expr and the values of x1,x2,x3...
· ∀x,condexpr which says that expr holds for all values of x which
satisfy the condition for this the function looks like for_all(expr,var)
where var=(x1,x2,x3….) this returns an assertion based on the expr and the
values of x1,x2,x3...
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