Framed temporal logic programming

A Projection Temporal Logic is discussed and some of its laws are given. After that, an executable temporal logic programming language, called Framed Tempura, is formalized. A minimal model-based approach for framing in temporal logic programming is presented. Since framing destroys monotonicity, canonical models - used to define the semantics of non-framed programs - are no longer appropriate. To deal with this, a minimal model theory is developed, using which the temporal semantics of framed programs is captured. The existence of a minimal model for a given framed program is demonstrated. A synchronous communication mechanism for concurrent programs is provided by means of the framing technique and minimal model semantics. (C) 2007 Elsevier B.V. All rights reserved.