Determine the
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- Prove the following statements for arbitrary elements in an ordered integral domain. a. ab implies ba. b. ae implies a2a. c. If ab and cd, where a,b,c and d are all positive elements, then acbd.arrow_forwardFor an element x of an ordered integral domain D, the absolute value | x | is defined by | x |={ xifx0xif0x Prove that | x |=| x | for all xD. Prove that | x |x| x | for all xD. Prove that | xy |=| x || y | for all x,yD. Prove that | x+y || x |+| y | for all x,yD. Prove that | | x || y | || xy | for all x,yD.arrow_forwardLet D be an integral domain with four elements, D=0,e,a,b, where e is the unity. a. Prove that D has characteristic 2. b. Construct an addition table for D.arrow_forward
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