Talk:Turned A: Difference between revisions

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Why is there a page for turned A (http://en.wikipedia.org/wiki/Universal_quantification), but not a page for turned E: http://en.wikipedia.org/wiki/Existential_quantification. Mysticyx (talk) —Preceding undated comment added 20:16, February 7, 2011 (UTC)

History?

For an article about mathematical notation, this seems lacking in any sense of history. How did this symbol come to be used for universal quantification? Who invented it, how did it become widespread, and what alternative notations did it supplant? Was it always sans serif, or did it evolve from an earlier form that just copied an A in the same type face? —David Eppstein (talk) 00:56, 24 November 2012 (UTC)[reply]

Not notable

I don't see any evidence of separate notability for the topic of Turned A. It should redirect to the quantifier article. The symbol can be listed with a number of others in an article about Unicode mathematical symbols as well. Dmcq (talk) 10:59, 24 November 2012 (UTC)[reply]

I see it is also used in the international phonetic alphabet. Probably best I think to have a disambiguation page which canb send people to one of the IPA character set, the special symbols for mathematics or the quantification article. Dmcq (talk) 11:13, 24 November 2012 (UTC)[reply]

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	Why is there a page for turned A (http://en.wikipedia.org/wiki/Universal_quantification), but not a page for turned E: http://en.wikipedia.org/wiki/Existential_quantification.		Why is there a page for turned A (http://en.wikipedia.org/wiki/Universal_quantification), but not a page for turned E: http://en.wikipedia.org/wiki/Existential_quantification.