Whole W = {0, 1, 2, 3...}
Integer I = {... -2, -1, 0, 1, 2...}
Rational Q = {a/b; a, b "in the set" I, b "is not equal to" 0}
Decimal must terminate
Irrational IQ = Not in the set of Q
Real R = Q "and" IQ
The second diagram wasn't included in the lesson but, It has examples of N, W, I, Q, IQ, and R numbers.
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