Changes related to "Ring extension"
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18 October 2016
- (diff | hist) . . Ring (mathematics); 02:56 . . (+8) . . Quondum (→Notes on the definition: ce: possibly the existence of → the requirement that there exists)
- (diff | hist) . . Ring (mathematics); 02:49 . . (+6) . . Quondum (→Notes on the definition: why define a notation for an element that does not necessarily exist?)