Conjunction and-or connects two phrases into complex phrase. It can be used to make a union of concepts or to introduce complex conditions into semantic rules. The complex condition is satisfied if at least one of its conditions is fulfilled.


The examples show how to use conjuction and-or.

Comment: The concept of a child is an intersection of concepts of boy and girl.
Something is a child if-and-only-if-it is a boy and-or is a girl.