'Negatives' can't be 'proven' ...
That is a negative statement.
If it were true, then it couldn't be proven to be true.
If it were an unprovable proposition, then your adherence to it would be a free choice, not mandated by reason or logic.
In fact,
it is false that "negatives can't be proven."Some negatives are demonstrable; others aren't.
That AE and FN did not land at Howland (a negative statement) is as provable as any other historical allegation, and on the same grounds: examination of the testimony of witnesses present at the time in question.