refactor(paper.design.concepts.arithmetic): add missing 'other'

Author: JohelEGP

number_concepts/paper-design.tex

@@ -97,7 +97,7 @@
 The mapping is left unspecified, so the result isn't over-constrained.
 
 \pnum
-The operations required by refinements of \cname{number} are specified similarly.
+The operations required by other refinements of \cname{number} are specified similarly.
 
 \rSec2[paper.design.concepts.terse]{Terse syntax}