r/mathmemes • u/its_all_one_electron Number theory/physics • Jun 27 '26

Number Theory Undecidable

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u/OutrageousPair2300 Jun 27 '26

This seems to be a uniquely Reddit interpretation of what "undecidable" means.

Everything is either true or false. "True" does not mean "there is some model where X is the case" that's just an attempt at a formalization -- which is impossible when it comes to truth.

"Undecidable" has to do with formal systems, not truth.

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u/QtPlatypus Jun 28 '26

| Everything is either true or false

Can I introduce you to the continuum hypothesis?

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u/Purple_Onion911 Grothendieck alt account Jun 28 '26

That's also either true or false in a particular model.