SOLUTION: The cardinal number of {xlx=x+5 and x∈N} is
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Question 1204028: The cardinal number of {xlx=x+5 and x∈N} is
Found 2 solutions by greenestamps, ikleyn:
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!
If I read your notation correctly, the set is the set of integers x for which the equation x=x+5 is true. Since there are no such integers x, the set is the empty set, and the cardinal number of an empty set is 0.
ANSWER: 0
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.
. . . is 0 (zero).
This set of x's is empty.
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