p q    (p    (p     p q p q p q) p q) p q T T T T T F F T F T F T F F F F (3) (b) What word is used to describe the argument (p     q) p q? (1) (Total 4 marks) 26. Consider the following logic statements: is a factor of 6 p: x is a factor of 24 q: x (a) Write in words. p  q (1) (b) Write the converse of  p q. (1) (c) State if the converse is true or false and give an example to justify your answer. (2) (Total 4 marks) The truth table below shows the truth-values for the proposition 29.      p q p q p q            p q p q p q p q p q T T F F F T F F T T T F T T F T T T F F T T F T (a) Explain the distinction between the compound propositions, and p  q  p   q. (b) Fill in the four missing truth-values on the table. (c) State whether the proposition is a tautology, a contradiction or neither.      p q p q (Total 6 marks)
p q p  q p  q  p (p  q)   p (p  q)   p  q T T T T T F F T F T F T F F F F (3) (b) What word is used to describe the argument (p  q)   p  q? (1) (Total 4 marks) 26. Consider the following logic statements: p: x is a factor of 6 q: x is a factor of 24 (a) Write p  q in words. (1) (b) Write the converse of p  q. (1) (c) State if the converse is true or false and give an example to justify your answer. (2) (Total 4 marks) 29. The truth table below shows the truth-values for the proposition p  q   p   q p q  p  q p  q  p   q p  q   p   q T T F F F T F F T T T F T T F T T T F F T T F T (a) Explain the distinction between the compound propositions, p  q and  p   q. (b) Fill in the four missing truth-values on the table. (c) State whether the proposition p  q   p   q is a tautology, a contradiction or neither. (Total 6 marks)
6-review-part-1.docx