A totally ordered set (A, <=) is said to be well ordered (or have a well-founded order) iff every nonempty subset of A has a least element. Every finite totally ordered set is well ordered. The set of integers Z, which has no least element, is an example of a set that is not well ordered. An ordinal number is the order type of a well ordered set.
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Jonathan is doing really well in all of his classes this semester, 5 A’s & 2 B’s (he has a computer essentials class instead of PLC). In his Algebra class that Nathan is helping him with he has an A+.
Sarah is very positive, enthusiastic and encourages my daughter to do better each time she comes. My daughter’s grade has improved, we are very grateful for Sarah and that she is tutoring our daughter. Way to go ClubZ!
