Could you add
a command-line option for ltl2tgba to invert the input
formula before computing the automaton?
Done.
https://gitlab.lrde.epita.fr/spot/spot/commit/7f21d3ff29ad3a513f261025c5
75e4676a14cc50
Great - many thanks!
Any opinion on what passing --negate twice should do?
A really good and nerdy one - twice the smiley face! :-) :-)
Cheers,
Victor.