PHL232H1 Lecture Notes - Lecture 1: Relevance Logic, Truth Table, Classical Logic
Document Summary
Validity and soundness validity soundness only arguments are valid/invalid not statements if all the premises are true then the conclusion must be true validity and true premises there are many arguments that are valid but not sound. Many very odd arguments can be considered valid if the premises are not all true at the same time then the argument is automatically trivially valid (and the conclusion must be true) example: Conclusion 2: grass is purple or grass is not purple.
