نوع مقاله : علمی - پژوهشی
نویسندگان
1 دانشیار گروه فلسفة دانشکدة ادبیات و علوم انسانی دانشگاه اصفهان، ایران (نویسندة مسئول)
2 دکتری تخصصی منطق فلسفی، گروه فلسفة دانشکدة ادبیات و علوم انسانی دانشگاه اصفهان، اصفهان، ایران
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
In Classical Logic, an argument is valid if and only if the conclusion can be deduced from the premises by using the rules of inference. According to this definition, arguments like and are considered as valid. However, our intuition cannot confirm the validity of these arguments. By adding two new conditions to the conditions of validity of arguments, HajHosseini has presented a new definition of the validity of argument in his book A New Sketch for the Principles and Foundations of Logic, and, based on this new definition, has closed the ways of proving the two above-mentioned arguments. This new definition requires some revisions in some rules of inference and some arguments in Classical Logic, and has led to establishing the theory of truth function. Asadollah Fallahi, in a paper entitled “HajHosseini’s truth-functional system”, published in Ayeneye Marefat, Spring 2023, has criticized this theory without stating his own view on two above-mentioned arguments. Among Fallahi’s criticisms, only one criticism directly aims at the main idea of the theory, which we will deal with at length. Two criticisms require correcting an inadvertent error or removing the ambiguity from the book. Other criticisms have arisen from leaving some requirements of criticism, incorrect understanding of the theory, ignoring other valid aspects, and neglecting some of HajHosseini’s expositions.
کلیدواژه‌ها [English]
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