Talk:Johannes Widmann

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How deliciously obscure... edit

Latest comment: 16 years ago1 comment1 person in discussion

Is there any way this article can be expanded? 207.62.186.233 (talk) 15:29, 28 February 2008 (UTC)Reply

addition and subtraction-sign edit

Latest comment: 16 years ago1 comment1 person in discussion

Afaik it`s not completely clear if he actually had invented them, but they did appear for the first time in his book in printed form. 62.178.137.216 (talk) —Preceding comment was added at 15:00, 23 March 2008 (UTC)Reply

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