This chapter covers different deductive arguments including
chain argument, modus tollens, Modus ponens, and Hypothetical Syllogisms. After reading Chapter 8 Deductive arguments entirely, I
would like to discuss categorical syllogisms in depth. Categorical syllogisms can be written in
varies forms. It is a deductive argument with two premises and three terms. For
example, if Florence is my mum and Vincent is my dad, then Florence must be
married to Vincent. It is a “if…then…” argument. We can also use diagrams to
illustrate the concept. First we have to draw three circles that represent the
three points, and then we learn the intersection of the circles is the answer
of the argument. Sometimes if we have to neglect with some conditions, we have
to cross out the side that is not going to happen. Then the remaining intersect
area will be the answer. That is called the Venn diagrams. I think categorical
syllogisms can help us to sort the possibilities out when we make decisions.
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