fix arrow order in 5.2.17

Author: ecpeterson

sigma.tex

@@ -402,7 +402,7 @@ \section{Special divisors and the special splitting principle}\label{MSUDay}
 
 
 \begin{remark}[{\cite[Lemma 6.4]{AndoStrickland}}]\label{BSUToBU}
-We can also analyze the map \[\Spec E_0 B\SU \to \Spec E_0 BU\] in terms of these models of functions to \(\Gm\).  Again, the analysis passes through a computation in connective \(K\)--theory, using the identification \[kU^*(\CP^\infty)^{\times 2} = \Z[\beta]\ps{x_1, x_2},\] where \(x_1 = \pi_1^* x\) and \(x_2 = \pi_2^* x\) are the Chern classes associated to the tautological bundle pulled back along projections to the first and second factors
+We can also analyze the map \[\Spec E_0 BU \to \Spec E_0 B\SU\] in terms of these models of functions to \(\Gm\).  Again, the analysis passes through a computation in connective \(K\)--theory, using the identification \[kU^*(\CP^\infty)^{\times 2} = \Z[\beta]\ps{x_1, x_2},\] where \(x_1 = \pi_1^* x\) and \(x_2 = \pi_2^* x\) are the Chern classes associated to the tautological bundle pulled back along projections to the first and second factors
 \begin{align*}
 \pi_1\co (\CP^\infty)^{\times 2} & \to \CP^\infty \times *, &
 \pi_2\co (\CP^\infty)^{\times 2} & \to * \times \CP^\infty,