With $P$ denoting "The cow moos" and $Q$ denoting "The pig oinks",
> The cow moos whenever the pig oinks
is $Q \to P$, not $P \to Q$.
With $P$ denoting "The cow moos" and $Q$ denoting "The pig oinks",
> The cow moos whenever the pig oinks
is $Q \to P$, not $P \to Q$.