Talk:Tombstone (typography)

Halmos
Can someone provide a citation for the name "halmos" for this character? I checked the unicode standard, and it doesn't mention this.--Malcohol 09:21, 8 September 2006 (UTC)
 * I duno, I think that's classsified as common knowledge or something... that's how I learned it. 71.29.123.19 12:03, 18 March 2007 (UTC)

Well, we've got a citation now, but it's a web page quoting a book instead of the book itself. Someone (maybe me, but not today) should check the book, not only just to make sure as one always should, but also to see if we can replace "[an empty square]" with "∎" or "□" or the like. —Toby Bartels (talk) 14:20, 12 December 2007 (UTC)

OK, I've checked it. It's actually a hollow rectangle in the book (U+25AF — ▯, white verticale rectangle). So, I've removed "by Miller" except from References since it still should be helpful. Here's the piece of interest from the scanned book, just in case — halmos.png. —Preceding unsigned comment added by 78.36.166.54 (talk) 15:58, 1 September 2010 (UTC)

Poincare origin apocryphal?
I remember being told by an instructor that Poincare started the use of the symbol in place of QED, as a pun on his name ("point carré"). Is that apocryphal? 209.234.91.82 (talk) 17:53, 15 October 2010 (UTC)

Usage elsewhere
In my church it is used in the book containing the readings from the bible to indicate that the text does not continue on the next page so as a speaker you do not flip pages during holy mass without need.

(typography)
despite the article name, this page entirely focuses on the usage in mathematics, not the original typographical one from which it is derived. This should be added, and the article maybe merged with Cul-de-lampe (typography) which seems to be another variation of the same idea. --jonas (talk) 08:58, 3 March 2023 (UTC)