1. A process, residing in the memory of a Smartphone or cellular phone, that is used to invoke a compound wireless mobile communication service also known as a Smartphone app or its diminutive app, by using a Boolean expression of events, which when a combination of events that either occur or events that do not occur result in a “True” evaluation of the Boolean expression, the aforementioned compound wireless mobile communication service will commence its execution, where the Boolean expression is contained within a service termed Invoke facility service; such that the builder of an Invoke facility service associated the said Invoke facility service with the aforementioned compound wireless mobile communication service; wherein the contained Boolean expression is built with events interconnected by the logical connectives of “And”, “Or”, “Not”, “If X, Then Y”, “And Then”; such that the negation operation “Not” establishes a contradictory event, signifying that an event and its contradictory event are both considered to be events, where if the event did not occur (is “False”), then its contradictory event did occur (is “True”) and conversely; and such that “And Then” is a conjunctive connective, meaning it has the same logical operation as “And”; whereas, “And Then” includes a sequential implication for testing the occurrence of events; as illustrated in the partial Boolean expression “PrecedingExpression And Then FollowingExpression”, for which “PrecedingExpression” and “FollowingExpression” are both logic expressions each containing one or more events, wherein the events within “PrecedingExpression” are tested for occurrences prior to testing occurrences of the events within “FollowingExpression”; where both logic expressions contain events or their contradictory events that are observable when tested by the wireless mobile terminal; such that events observed by or linked to the Smartphone or cellular telephone, wherein a category of events or their contradictions result from the spatial position of a wireless mobile terminal with respect to a range of planar space; which can be of a circular shape or in the shape of an arbitrary polygonal, where a circular plane is identified by a center with a specified radius and where a polygon is defined as a closed figure in a plane, identified by set of geographic points in that plane; with each point being a pair (x, y) connected to exactly two edges, with as many edges as points, where no edges intersect, and the edges enclose an area by means of an edge subtended from the final point to the first point; with an event occurrence of either the wireless mobile terminal being moved outside the polygon's boundary or being moved inside the polygon's boundary.