The phrase "argument collapses" is correct and usable in written English.
It can be used to describe a situation where a logical argument fails or is no longer valid.
Example: "When new evidence was presented, the argument collapses under scrutiny, revealing its flaws."
Alternatives: "argument fails" or "argument disintegrates".
"The Pirahã speakers learn Portuguese like everyone else, so of course they have the same faculty of language, and therefore his entire argument collapses.
Caleb Crain struggles to argue that Harvey C. Mansfield and Delba Winthrop have seen to it that "Tocqueville has joined the neocons" (Jan . 14, but his argument collapses under its own dead weight, a collapse Crain fails to notice.
If we can find a way to reject that step, then we the argument collapses.
He says that our cognitive resources are "radically insufficient to provide sufficient warrant to accepting [the main premise of the evidential argument]," so much so that "the inductive argument collapses" (98).
As is often the case with such absolutism, Will's argument collapses under its own inconsistencies.
As I have explained in a previous post, this argument collapses on itself.
At the heart of Gödel's theorem he finds the idea of self-reference, which can be viewed as a circular argument collapsed into itself.
Those who claim, genuinely or dishonestly, that the world's media are biased in favour of Palestinians had their argument collapse this week.
For example, Michael Hudson of the Centre for Research on Globalization argued that a crucial relational component that, once eliminated, made this argument collapse like a house of cards.
As we have seen, however, both arguments collapse - indeed, look quite silly - when given even a cursory critical examination.
If, for example, 'vaguely identical' is taken to mean 'thought to be identical', then the two arguments collapse into one another.
