For all x, y, z EF, if x + z = y + z, then x = y. . For all x, y, z E F \ {0}, if x z=yz, then x = y.
For all x, y, z EF, if x + z = y + z, then x = y. . For all x, y, z E F \ {0}, if x z=yz, then x = y.
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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Transcribed Image Text:【4) Prove “cancellation" for fields (without looking up the proofs):
(a) For all x, y, z ≤ F, if x + z = y + z, then x = y.
(b) For all x, y, z € F \ {0}, if x · z = y. z, then x = y.
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