Under strict coherence conditions articulated by Shimony and later Skyrms, every logically possible event must receive positive credence, making genuine zero-probability assignments rationally impermissible regardless of distribution type.
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Rationally impermissible(as used in epistemology and decision theory)
Something that goes against the rules of rational thinking—in other words, it's irrational or logically indefensible to do it.
Shimony(as a foundational contributor to coherence theory)
Henry Shimony was a 20th-century philosopher and physicist who developed important theories about how probabilities should work in quantum mechanics and rational thinking.
Skyrms(the author being referenced)
Brian Skyrms is a philosopher who studies how people's behavior and agreements evolve over time using math and game theory.
Zero-probability assignments(as used in probability and rational belief)
Saying that something has absolutely no chance of happening—assigning it a probability of exactly 0.
credence(Bayesian epistemology)
A subjective degree of belief, used in Bayesian epistemology to represent how strongly an agent believes a proposition.