Suppose a set A is uncountably infinite, that U is countably infinite, and that UC A. Show that A - U (A with U deleted) is uncountably infinite.
Suppose a set A is uncountably infinite, that U is countably infinite, and that UC A. Show that A - U (A with U deleted) is uncountably infinite.
Chapter9: Sequences, Probability And Counting Theory
Section9.5: Counting Principles
Problem 38SE: Suppose a set A has 2,048 subsets. How many distinct objects are contained in A?
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