Wittgenstein argued in 'Remarks on the Foundations of Mathematics' that the diagonal construction conflates object-language provability with metatheoretic truth in a way that begs the question.

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Provability(as the standard by which large cardinal hypotheses are being compared): The ability to prove something is true using logical rules and established facts—whether a statement can be demonstrated with certainty.
Remarks on the Foundations of Mathematics(the specific work being referenced): A book by Wittgenstein where he questions basic assumptions about what mathematics is and how it works, rather than accepting math as simply describing truths about numbers.
Wittgenstein: Ludwig Wittgenstein was an Austrian-British philosopher who fundamentally changed how people think about language and meaning in the 20th century. He argued that many philosophical problems arise from misunderstanding how words actually work in everyday life, rather than from deep metaphysical mysteries. His ideas influenced not just philosophy but also mathematics, logic, and even how people approach psychology and artificial intelligence today.
begs the question(Informal fallacy in epistemic justification)

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