PHIL 10 Lecture Notes - Lecture 4: Atomic Sentence, Abstract Machine, Qi
Document Summary
Phil 10 lecture 4 chapter 2: truth functions & evaluating compound statements. Keys are in the box and metal is in the box (false) Keys are in the box or metal is in the box (true) If keys are in the box then metal is in the box (true) Keys are in the box if metal is in the box (false) Whether compound statement formed by one of operators is true or false depends on whether components are true or false. Conjunctions, disjunctions, etc. all have different patterns of true or false components that make them true/false. Function: takes inputs, produces outputs: abstract machine. Any # of inputs, but 1 output. Addition function: 2 inputs with one output: 4 + 3 = 7 input 4 and 3, output 7 function can be defined with entire input-output structure. Truth functions: take truth values as inputs, produce truth values as outputs. 2 truth values true (t) false (f: every atomic statement t/f.
