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People otherwise attending:
* gathering of attendees and introduction in front of the big whiteboard in the basement entrance
Practice and discuss the following (to any attendees interested):
* commutativity, associativity, left-to-right, right-to-left and bracket () priorities
* solving equations
This meeting can only take place if there is someone to teach this math (Koert, for example).
With one unknown, two uknowns and possibly (but not likely) three unknowns.
(of a binary operation) having the property that one term operating on a second is equal to the second operating on the first, as a × b = b × a.
Mathematics, Logic .
(of an operation on a set of elements) giving an equivalent expression when elements are grouped without change of order, as ( a + b ) + c = a + ( b + c ).
This is a minor edit
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