# HG changeset patch # User Kevin Walker # Date 1319385316 21600 # Node ID 7d398420577d30bd74c8afc3a628735001ec02b4 # Parent e8e234aeb266d5ec33328be4efaac0f05a98553a a little more revision of module axioms diff -r e8e234aeb266 -r 7d398420577d text/ncat.tex --- a/text/ncat.tex Sat Oct 22 22:31:00 2011 -0600 +++ b/text/ncat.tex Sun Oct 23 09:55:16 2011 -0600 @@ -2093,10 +2093,12 @@ modules for ordinary $n$-categories or $A_\infty$ $n$-categories. In the ordinary case we require -\begin{module-axiom}[\textup{\textbf{[ordinary version]}} Extended isotopy invariance in dimension $n$] -{Let $M$ be a marked $n$-ball and $f: M\to M$ be a homeomorphism which restricts -to the identity on $\bd M$ and is isotopic (rel boundary) to the identity. -Then $f$ acts trivially on $\cM(M)$.} +\begin{module-axiom}[Extended isotopy invariance in dimension $n$] +Let $M$ be a marked $n$-ball, $b \in \cM(M)$, and $f: M\to M$ be a homeomorphism which +acts trivially on the restriction $\bd b$ of $b$ to $\bd M$. +Suppose furthermore that $f$ is isotopic to the identity through homeomorphisms which +act trivially on $\bd b$. +Then $f(b) = b$. In addition, collar maps act trivially on $\cM(M)$. \end{module-axiom}