[Xy-pic] How to resolve "Command \l already defined ..."

[KIRAVU, C. (MR.)]

Hi Dr. Moore!
Thank you. Your suggestion to  use
 \renewcommand{\l}{\v{l}} worked. It's the preferred solution.


Before your suggestion,  I had resolved the issue by commenting the offending l. 32 in the  Denitions.tex file. This worked. Is this though what you indirectly refer to as a self-centred solution?  Would such commenting compromise the ability of others to use this command?

BTW, Strangely I thought Xy-pic involved issues related to  \usepackage[all]{xy} which for me works with, \usepackage{tikz-cd}. I may be forgiven for being  a first time user of this forum.
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