there were some great scientists like austin and searle in the growth stage of pragmatics, especially searle who has offered an executive procedure was completed by some discourse analysis elements, and it has completed the speech acts theory of austin. this survey considers the sermon of jihad in nahj ul-baläghah book by using its speech acts. by considering five speech acts, their direct and...

‎In this paper‎, ‎we characterize and find the number of subdirectly‎ ‎irreducible acts over some classes of semigroups‎, ‎such as zero‎ ‎semigroups‎, ‎right zero semigroups‎ ‎and strong chain of left zero semigroups.

abstract the nature and origin of human behaviors, as the main factors in the development of body and soul, have been studied and analyzed from different perspectives, including philosophy, psychology and physiology. in religious teachings, human behaviors are addressed through being classified into active and stative and also conscious and non-conscious behaviors and their effects on the life ...

let s be a monoid and x a class of s-acts which is closed under coproducts. the object of this article is to find conditions under which all s-acts have x-precovering. we have shown that the existence of torsion-free precovering implies the existence of torsion-free covering. this work is an attempt to further facilitate the study of the conjecture that all s-acts have flat cover.

in this paper, we have clarified the necessity and motivation about legal act of discerning minor. after this introduction, we have classified related subjects into two topics and here we have investigated each one of them. in first topics of concepts and definitions, discerning minor and legal acts have been investigated. for second topic, we have selected legal acts of discerning minor and ha...

lthough fuzzy set theory and  sheaf theory have been developed and studied independently,  Ulrich Hohle shows that a large part of fuzzy set  theory  is in fact a subfield of sheaf theory. Many authors have studied mathematical structures, in particular, algebraic structures, in both  categories of these generalized (multi)sets. Using Hohle's idea, we show that for a (universal) algebra $A$, th...

Valdis Laan in [5] introduced an extension of strong flatness which is called weak pullback flatness. In this paper we introduce a new property of acts over monoids, called U-WPF which is an extension of weak pullback flatness and give a classification of monoids by this property of their acts and also a classification of monoids when this property of acts implies others. We also show that regu...

In this paper $S$ is a monoid with a left zero and $A_S$ (or $A$) is a unitary right $S$-act. It is shown that a monoid $S$ is right perfect (semiperfect) if and only if every (finitely generated) strongly flat right $S$-act is quasi-projective. Also it is shown that if every right $S$-act has a unique zero element, then the existence of a quasi-projective cover for each right act implies that ...