Answer
The given statement in symbolic form is \[\tilde{\ }\left( p\wedge \tilde{\ }q \right)\], where
\[p\]: I ordered pizza.
.
\[q\]: Gain weight.
The truth value for \[\tilde{\ }\left( p\wedge \tilde{\ }q \right)\] as shown in the table.
The truth value of \[\tilde{\ }\left( p\wedge \tilde{\ }q \right)\] is true for each case except when the statements p is true and q is false.