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Howtonotwin (talk | contribs) m →String homomorphism: fix invisible braces, spacing in set notation |
Reverted good faith edits by Dominus (talk): Not clearly improving |
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:<math>\{S/m\ \vert\ m\in M\}</math>
is finite. In the case that ''M'' is the monoid of words over some alphabet, ''S'' is then a [[regular language]], that is, a language that can be recognized by a [[finite
==Right cancellation==
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