Formula
$$\begin{matrix} p & q & p \implies q \\[0.3 em] T & T & T \\[0.3 em] T & F & F \\[0.3 em] F & T & F \\[0.3 em] F & F & T \end{matrix}$$
$$\begin{matrix} p & q & p \implies q \\[0.3 em] T & T & T \\[0.3 em] T & F & F \\[0.3 em] F & T & F \\[0.3 em] F & F & T \end{matrix}$$