MODR 1760 Lecture Notes - Lecture 4: Counterargument, Propositional Calculus, First-Order Logic

• School: York University
• Department: Modes Of Reasoning
• Course: MODR 1760
• Professor: Julie Allen

Document Summary

Def of argument, distinguish argument with explanation, distinguish propositions within sentences. Explanation taking account that why sth that is so is so. Argument trying to convince us that sth is the case. Assertio(cid:374) (cid:894)(cid:271)y (cid:862)people(cid:863), (cid:374)ot a(cid:374) argu(cid:373)e(cid:374)t(cid:895): (cid:272)hildre(cid:374) who wat(cid:272)h too much violent tv will grow up violent. Counterargument: there is violence in countries without tv. Therefore, not all children who watch too much violent tv will grow up violent. The counterargument in an attempt to refuse the assertion. but the attempt fails: the premises of the counterargument is irrelevant: argument: Cd"s retail far too (cid:373)u(cid:272)h. they o(cid:374)ly (cid:272)ost a(cid:271)out . 50 per to manufacture, and they sell for far more than that: cds cost about . 50 per unit to manufacture, cds sell for far more than . 50. Therefore, cds retail for far too much: counterargument: There"s (cid:373)ore to the (cid:272)ost of cd tha(cid:374) the (cid:373)aterials. The o(cid:374)e-time costs of the studio recording are huge.