Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Temporal Logic for Uncertain Events and An Outline of A Possible
  Implementation in An Extension of PROLOG   There is uncertainty associated with the occurrence of many events in real
life. In this paper we develop a temporal logic to deal with such uncertain
events and outline a possible implementation in an extension of PROLOG. Events
are represented as fuzzy sets with the membership function giving the
possibility of occurrence of the event in a given interval of time. The
developed temporal logic is simple but powerful. It can determine effectively
the various temporal relations between uncertain events or their combinations.
PROLOG provides a uniform substrate on which to effectively implement such a
temporal logic for uncertain events

10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom