Show that the two sentences below are logically equivalent. Express each pair of sentences using a logical expression. Then prove whether the two expressions are logically equivalent. Note: you can assume that x and y are real numbers, so if x is not irrational, hen x is rational, and if x is not rational, then x is an irrational number. • If x is a rational number and y is an irrational number then x-y is an irrational number. • If x is a rational number and x-y is a rational number then y is a rational number.

Show that the two sentences below are logically equivalent. Express each pair of sentences using a logical expression. Then prove whether the two expressions are logically equivalent. Note: you can assume that x and y are real numbers, so if x is not irrational, hen x is rational, and if x is not rational, then x is an irrational number. • If x is a rational number and y is an irrational number then x-y is an irrational number. • If x is a rational number and x-y is a rational number then y is a rational number.

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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