মিশ্র সহানুমানের কোন রূপটি বৈধ?

$\begin{array}{l}P \supset Q \\\sim Q \\\ {\therefore} P\end{array}$

$\begin{array}{l}P \supset Q \\\sim P \\\therefore \sim\end{array}$

$\begin{array}{l}P \supset Q \\\sim Q \\\therefore \sim P\end{array}$

$\begin{array}{l}P \supset Q \\\quad P \\\therefore \sim Q\end{array}$