I would like to add the \usepackage{amsthm} line to the preamble, to do that I deleted the \newenvironment{proof}[1][Proof]{\noindent\textbf{#1.} }{\ \rule{0.5em}{0.5em}} line that is automatically there because there is a conflict in the definition.

When I deleted that environment Scientific Workplace no longer displays the contents of the proof's that I have written. It simply makes a tex field button that you have to click on to see what is there. Is there a way to force scientific workplace to display the contents of the proof lines?



Using the amsthm package Yes,

Using the amsthm package

Yes, see: Message: Command \proof already defined