I'm writing a paper and I would like to have a square at the end of each proof without having the "Proof." that comes automatically with the


thing because I don't want the "Proof" to be in italic, and I want two dots after "Proof".

I know I can do this manually by using \blacksquare or something of this sort. But I want the squares to be placed automatically because there are too many proofs and it would take a lot of time to manage the spacing after each proof. So I do want to use that "\begin{proof}...\end{proof}" thing but somehow I don't want it to give "Proof." at the beginning.

Is there a way for this? And if not, what other command could I use so that black squares are placed automatically but with no "Proof." at the beginning?

Thanks a lot.

  • So, if not via proof, what is your desired input syntax to obtain what you want? That is, you somehow need to indicate when to place the square. May 9 '19 at 12:25
  • This message by Barabara Beeton can be very useful to customize this type of thing.
    – frougon
    May 9 '19 at 12:32

... I don't want the [word] "Proof" to be in italic ... I want [a colon] after "Proof" ...

Assuming you employ the amsthm package to set up and typeset theorem-like environments, you may achieve your formatting objective by modifying the macros \proofname and \qedsymbol.

enter image description here

\usepackage{amssymb}  % for '\blacksquare' macro
\usepackage{amsthm}   % for 'proof' environment 
\renewcommand\proofname{\textup{Proof:}} % default is 'Proof.' 

Bla bla bla\dots
  • 1
    Perfect. Thank you
    – user
    May 9 '19 at 16:22

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