Typesetting can be disabled by engaging quiet mode. This allows definitions to be apparently omitted from a document without confusing the typechecker. Quiet mode is appropriate in published papers, where space is limited, for omitting obvious auxiliary declarations.
The troff mark-up for enabling quiet mode and subsequently disabling it is as follows, on lines by themselves.
.ZQ 1 ... .ZQ 0
The LaTeX mark-up for enabling quiet mode and subsequently disabling it is as follows, on lines by themselves.
\begin{quiet} %%quiet 1 ... %%quiet 0 \end{quiet}
The %%quiet directives are recognised by ltcadiz, ignored by LaTeX. The {quiet} environment is recognised by LaTeX, ignored by ltcadiz. The two can be used independently, or nested the other way around.