While reading about coordinate transformations. I came across this

$\Omega^{\gamma}\_{\beta,\alpha}=[\omega^{\gamma}\_{\beta,\alpha}\wedge]$

What does the caret (or wedge) mean? In the book it looks more like a caret than a wedge.

![image from source](https://i.stack.imgur.com/JlCMQ.jpg)

Taken from Groves, Paul D Principles of GNSS, Inertial, And Multisensor Integrated Navigation Systems 2nd ed p. 45.

Thank you in advance.