Surgery exact sequence, PL sphere (Ex)

Compute the $PL$$<wikitex>; Compute the $PL$ surgery exact of $S^n$, $n \geq 5$. Hence determine $\pi_n(G/PL)$ for $n \geq 5$. </wikitex> == References == {{#RefList:}} [[Category:Exercises]] [[Category:Exercises without solution]]PL$ surgery exact of $S^n$$S^n$, $n \geq 5$$n \geq 5$. Hence determine $\pi_n(G/PL)$$\pi_n(G/PL)$ for $n \geq 5$$n \geq 5$.