"Everyone has the same theory," said Lada, a 40-year-old doctor who would not give her last name.
It blew up late one night in an explosion that was officially labeled mysterious, but that everyone in the neighborhood has the same theory about.
(Reading the first volume, I was delighted to find that Karl Ove and I liked the same bands — New Order, Talk Talk, Talking Heads — and that we have the same elaborate theory about why they're good).
A.D. Woozley puts the difficulty of doing this succinctly: "…it is scarcely credible both that Locke should be able to see and state so clearly the fundamental objection to the picture-original theory of sense perception, and that he should have held the same theory himself".
It turns out that two points in a given coalgebra have the same infinitary modal theory iff they are bisimilar.
As it happened, that naturalist was Charles Darwin, who had conceived the same theory 20 years earlier but had shared it only with confidants.
Another worrying phenomenon is "sero-sorting" – when men choose partners who have the same HIV status, in theory negating the need to use a condom.
On the modal entailment criterion, these theories have the same ontological commitments; moreover, supposing numbers do exist, the theory that explicitly denies the existence of numbers is nonetheless committed to numbers.
