PHL145H5 Lecture Notes - Lecture 2: Soundness, Counterexample
Document Summary
Reasoning: what would follow if certain things were true. Persuasion: a definite claim and to justify it by giving reasons that support it (what if reasoning) And if it isn"t, it may be important to be able to say just where it goes wrong. What is the other person"s point; what is she trying to get me to believe? . What if anything is being supported and what is just merely being asserted? . Validity: the definition does not require that either the premises or the conclusion of a valid argument be true, the definition does not say anything about what happens if one or more of the premises is false. In particular, it does not say that if any of the premises are false, then the conclusion must be false: the definition does not say anything about what happens if the conclusion is true.
