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Timeline for answer to Sandbox for Proposed Challenges by Kaya

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Jun 11, 2013 at 14:04 comment added Kaya Good call on the string inverse, yes you have the right idea and I will make it clear. I have a lot of test cases from when I did a number of these computations by hand in a university course and (anecdotal experience) I am pretty sure that it is possible to force the use of all the reduction rules (except maybe 4 which is really just a meta-rule for convenience when doing proofs). Additionally you have alerted me to some concerns regarding the form of the proper output: it's definitely underspecified. I'll put some work into this today.
Jun 11, 2013 at 8:32 comment added Peter Taylor It's also occurred to me that you haven't defined the notation M'. Does it just consist of toggling the orientation of each token, or does it also reverse the entire string? And do you have test cases which between them force implementation of all of the reduction rules?
Jun 10, 2013 at 8:49 comment added Peter Taylor I don't think the order of explanation is correct. You should explain reduction before talking about "the reduced word". And "reduce it via reduction rules" doesn't entirely make sense, because the rules are presented as equivalences rather than reductions, and most of them don't have a "natural" direction.
Jun 8, 2013 at 16:24 history edited Kaya CC BY-SA 3.0
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Jun 8, 2013 at 16:21 comment added Kaya Yes, this is the case. In general however there is not a unique series of applications of the reduction rules for any given instance.
Jun 8, 2013 at 14:33 comment added PhiNotPi If, for each input, there is only one correct output, then it should probably be code-golf. The scoring criteria would then be source code length.
Jun 7, 2013 at 3:44 history edited Kaya CC BY-SA 3.0
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Jun 7, 2013 at 3:37 history answered Kaya CC BY-SA 3.0