descriptive claim
Agda, Coq, and Isabelle have each had kernel bugs that allowed false statements to be validated.
Unresolved speaker · Mathematics Just Changed Forever — Kevin Hartnett · 26 Oct 2026
In their words
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“At that point, the ITP is useless until the bug in the kernel is fixed. Over the years, ITPs such as Agda, Coq, and Isabelle had all contained bugs in their kernels that allowed users to validate false statements.”14:40Report a misattribution
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