Specify N must be odd in anpnaneq0d.

set.mm

@@ -630930,7 +630930,7 @@ standardize vectors to a length (norm) of one, but such definitions require
     anpnaneq0d.2 $e |- ( ph -> N e. NN0 ) $.
     anpnaneq0d.3 $e |- ( ph -> -. 2 || N ) $.
     $( The sum of a real number to the power of N and the negative of the
-       number to the power of N equals zero if N is a nonnegative even integer.
+       number to the power of N equals zero if N is a nonnegative odd integer.
        (Contributed by Igor Ieskov, 21-Jan-2024.) $)
     anpnaneq0d $p |- ( ph -> ( ( A ^ N ) + ( -u A ^ N ) ) = 0 ) $=
       ( cexp co cneg caddc cc0 wceq recnd mulm1d oveq1d wcel wi a1i mpd eqtr4d