For all
To create for all
logical expression, you must type the keyword for
. Then the for all
pattern appears.

The general form of this logical expression is for all x1, x2... xn in listX Expression(x1,...,xn)
. It means that for every <x1,..,xn>
from a list listX
an expression Expression(x1, ..., xn)
should be true
.
For all example


To calculate the result, a selection of various `` combinations from a certain list is made. If such a selection cannot be made, it is considered that the formula was not calculated and the `for all` expression returns `true`. That is, if the list is empty, or of a smaller dimension than the vector ``, you will end up with a `true`, and the formula inside `for all` will not be calculated.