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8:00 PM
I created the tag "relational-structure' (and retagged 15 questions with it), but I think I should replace it with 'algebraic-system'. Because algebraic system is better documented, because the fact that some of the relations are explicitly allowed to be viewed as functions. Hence it's more likely to be used. Actually I didn't look for "algebraic system" when creating "relational-structure" by lack of insight...
There are between 20 and 35 questions with "algebraic system", and I'll add the tag to them first (none has the "relational-structure" tag). Then I'll ask 'relational-structure' to be made a synonym then (and amend the relational-structure tag, which is unimportant since it's never been created in a new question). Most likely nothing will be done and I'll manually retag the "relational-systems" ones..
 

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