Existential Fallacy: Can you give better feedback than Copilot?

Being, Action, and Quality are mutually implicating.

As in my languish (logic anguish):

But I came here to say this:

you want valid (necessary being) & sound (sufficient action/demonstration)

you only get valid if you have sound

you only get sound if you have valid

BUT you cannot assume valid from or in isolation from sound, or sound from or in isolation from valid.

(And of course neither would be the case without an explanation/quality they are being/doing…which likewise cannot be assumed from, or in isolation from, either of them…for the same reasons, maybe… converse error & inverse error … hm, or their third.)