PHI 1101 Lecture Notes - Lecture 18: 5,6,7,8

• School: University of Ottawa
• Department: Philosophy
• Course: PHI 1101
• Professor: Vincent Bergeron

Document Summary

5. 5: some simple inferences justified with venn diagrams (read chapter and take notes b/c not done in class) We have more regions (add 5, 6, 7, 8) Always do universal propositions first (i. e. all ____, or no ____ ) Universale premises must be depicted before particular premises. When placing x s, do not introduce any assumptions. If two regions are open within the required region, place the x on the line separating them. Step 2: inspect the diagram to see whether the conclusion is also depicted.