Press the right key for the next slide (or swipe left)

also ...

Press the left key to go backwards (or swipe right)

Press n to toggle whether notes are shown (no equivalent if you don't have a keyboard)

Press m or double tap to see a menu of slides

## Does ‘if’ mean what ‘→’ means?

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These two arguments are valid: does that mean that if' means what →' means?
\end{minipage}
\begin{minipage}{\columnwidth}
The English argument isn't valid; the awFOL argument is valid; therefore if' can't mean what →' means?
\end{minipage}