RUNNING HEAD: Square of Opposition 1 Square of Opposition Himani Otia West Coast University What is a square of opposition and why is it used? The opposition square is a square model where the logical connections of contraries, contradictories, superalterns and subalterns
Square of Opposition 2 can be shown. In the square of opposition categorical logic is used. Categorical logic is defined by Brooke Moore and Richard Parker as “the study and application of the rules of reasoning” (Moore & Parker, 2017). The four main proposition remains categorical in structure and is defined as; Firstly, there is the universal affirmative, proposition A, this proposition states that “all S are P”. Secondly there is the proposition E which is the universal negations, this proposition states that, “no S are P”. Thirdly there is proposition I the particular affirmatives, this proposition states that “some S are P”. Finally the forth, proposition O the particular negations, which states that “some S are not P” (Moore & Parker, 2017). The whole purpose of the square is to show the relationships between each proposition, either each being contradictory to each other, contrary, subcontrary or even subalternations. First
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- Logic, Moore & Parker, Main proposition, Brooke Moore, O. Subalternation