This option for the function fpt specifies that, in a situation where the exact *F*-pure threshold was not found, a final check be run to determine whether the final lower bound for the *F*-pure threshold is actually its exact value. Only takes on Boolean values.

- fpt(..., FRegularityCheck => ...), see fpt -- attempts to compute the F-pure threshold of a polynomial at the origin

- fpt -- attempts to compute the F-pure threshold of a polynomial at the origin

The object FRegularityCheck is a symbol.