a source familiar with the matter on Nostr: In fact it does But people have very screwy ideas of "the opposite" of some claim If ...

In fact it does

But people have very screwy ideas of "the opposite" of some claim

If it is false than I own an orchard, the opposite (that I do not own an orchard) is necessarily true

However other "opposites" may or may not be true.

Do I owe someone else an orchard? Perhaps
Do I own timber-land? Perhaps
Do I affix apples to trees? Perhaps

and so on