Use Truth Tables Show Following Pairs Expressions Logically Equivalent P Q P Q Q P Prove F Q43908078
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Use truth tables to show that the following pairs of expressions are logically equivalent. (a) p-q and (p q) ^ (q – p) Prove that the following pairs of expressions are not logically equivalent. (a) p-q and a-p Solution Ifp= Tand q – F, then p-q is false and apis true. Also, when p = F and q = T, then p +q is true and q pis false. (b) bad- pue b- d- Translate each English sentence into a logical expression using the propositional variables defined below. Then negate the entire logical expression using parentheses and the negation operation. Apply De Morgan’s law to the resulting expression and translate the final logical expression back into English. • p: the applicant has written permission from his parents • e: the applicant is at least 18 years old • s: the applicant is at least 16 years old (a) The applicant has written permission from his parents and is at least 16 years old. (b) The applicant has written permission from his parents or is at least 18 years old. Feedback? Show transcribed image text Use truth tables to show that the following pairs of expressions are logically equivalent. (a) p-q and (p q) ^ (q – p)
Prove that the following pairs of expressions are not logically equivalent. (a) p-q and a-p Solution Ifp= Tand q – F, then p-q is false and apis true. Also, when p = F and q = T, then p +q is true and q pis false. (b) bad- pue b- d-
Translate each English sentence into a logical expression using the propositional variables defined below. Then negate the entire logical expression using parentheses and the negation operation. Apply De Morgan’s law to the resulting expression and translate the final logical expression back into English. • p: the applicant has written permission from his parents • e: the applicant is at least 18 years old • s: the applicant is at least 16 years old (a) The applicant has written permission from his parents and is at least 16 years old. (b) The applicant has written permission from his parents or is at least 18 years old. Feedback?
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