Fache had posited all kinds of explanations tonight to explain Sophie’s odd behavior, including that Sophie, as Saunière’s sole heir, had persuaded her secret lover Robert Langdon to kill off Saunière for the inheritance money.
There are no more uses of "posit" in the book.
Show samples from other sources
Are you positing that the squirrel typed those words?
Kate DiCamillo -- Flora & Ulysses
Starvation was posited as the most probable cause of death.