PSYC 213 Chapter Notes - Chapter 11: Mental Model, Mental Models, Natural Deduction
16 Apr 2016
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Syllogistic reasoning (categorical reasoning) a syllogism consists of two premises and a conclusion. Each of the premises specifies a relationship between two categories. Here are the four main forms of premises: universal affirmative premise all a"s are b"s and all b"s are a"s. All right angles are 90 degrees angle (and all 90 degree angles are 90 degrees angle) All cows are animals, but not all animals are cows: universal negative premise no a"s are. No tomatoes are animals, and no animals are tomatoes: particular affirmative premise some. Some dangerous beings are not animals: particular negative premise some a"s are not b"s, some b"s are not a"s. Some animals are not cows, but it is not true to say somes cows are not animals. These can be interpreted in many different ways! Logicism the belief that logical reasoning is an essential part of human nature. Practical syllogism one in which two premises point to a conclusion that calls for action.
