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Discussion of Problem 1670. Asterisk

Invalid sequence in the example
Posted by Bruce Merry 10 Jan 2009 15:19
As an example of evaluating subexpression, (1, (2 * 3), 4) is shown. However, this is not a valid expression according to the grammar (* can only operate on sequences, not numbers). Which is correct?
Expression is fixed. The grammar is correct. (-)
Posted by Sandro (USU) 10 Jan 2009 15:50