CPSC 121 Study Guide - Midterm Guide: Or Gate, Binary Number, Briey
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CPSC 121 Full Course Notes
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Student id: you have 90 minutes to write the 10 questions on this quiz, a total of 75 marks are available. You may want to complete what you consider to be the easiest questions. Rst: ensure that you clearly indicate a single legible answer for each question, you are allowed any reasonable number of textbooks and a single binder or folder of notes as references. Otherwise, no notes, aides, or electronic equipment are allowed: good luck! Q1 q2 q3 q4 q5 q6 q7 q8 q9 q10. 1 propositional logic tautologies, contradictions, and contingencies [4 marks] For each propositional logic statement below, indicate (by circling the appropriate answer) whether it is a tau- tology, a contradiction, or a contingency (neither a tautology nor a contradiction). These are worth [1 mark] each: p (q p) Solution : contingency: ( (p q)) ( q p) Circle one: tautology contradiction contingency tautology contradiction contingency tautology. Solution : ((p q) r) (p q r)
