PHIL 101 Lecture Notes - Lecture 13: Venn Diagram, Obversion, Syllogism

• School: University of San Diego
• Department: Philosophy
• Course: PHIL 101
• Professor: agule

Document Summary

Subalternation - if universal is true, its particular is true. Since universal is true, particular must also be true. If one is true, the other must be false. If one is true, the other is false: editing premise. Must say if new premise is equivalent (same truth value?: standard form categorical syllogisms. Labeled based on the standard form order and letter value of each premise and the conclusion, as well as a number that matches the placement of the m statement to the positions in the table above: venn diagram. Will look di erent from the exercise in book. Indicator words are needed: diagram premises in order, draw conclusion, compare. Universal and particular premise, if valid, conclusion must be particular. Universal conclusion for a valid premise must havre a missing universal premise. Particular conclusion must have a universal and a particular premise.