If anyone could prove Pythagoras was right, he would have a law rather than a theorem. Or was that your way of saying oed MIGHT be right because it can't be disproven or hasn't been disproven? You should start searching for squatch, because its existence also can't be disproven.
Yet again, you aren't as smart as you think you are.
1. It’s “theorem” , not “theory”.
Theorem: a general proposition not self-evident but PROVED by a chain of reasoning; a truth established by means of accepted truths.
Pythagorus proved his proposition.
Mathematical laws are unproved and arbitrary. “they ultimately rely on arbitrary axioms”.
Words are important.
2. If something is proved and you claim otherwise, it’s incumbent on you to prove your claim, not anyone else.
Thx claimed the OED is wrong. His proof is “people are fallible”. Not how it works in the real world.
The OED is the accepted standard for a reason. Disagree? Prove them wrong. PROVE, not FEEL.
Nothing “exists” unless it is proved to exist. Until a yeti is found, it is nothing more than a feeling or belief, hope or faith.
If YOU want to declare yeti real, then you must prove it real.
Welcome to the scientific method.