Suppose that C is generated from a set B={a,b} by the binary operation f and the unitary operation g. List all the elements of C_2. How many elements can C_3 and C_4 have? Remember that C_n is the set of all points x such that some construction sequence of length n ends with x, and then B=C_1⊆C_2⊆C_3⊆⋯.

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section2.1: Basic Assumptions
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Suppose that C is generated from a set B={a,b} by the binary operation f and the unitary operation g. List all the elements of C_2. How many elements can C_3 and C_4 have? Remember that C_n is the set of all points x such that some construction sequence of length n ends with x, and then B=C_1⊆C_2⊆C_3⊆⋯.

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