But at least part of Hume's concern seems to have been that no set of claims about plain matters of fact ('is' claims) entail any evaluative claims ('ought' claims).
The problem with these explanations, Elster argues, is that they "postulate a purpose without a purposive actor" (1982, 452), and therefore (he claims) entail a commitment to some form of objective teleology.
Collectively, these three claims entail that human behavior, like the behavior of everything else, is fully necessitated by, and explicable through, the immutable and non-providential laws of God or non-providential laws
This claim entails that connectionism cannot compete with the classical approach as an alternative architectural framework for human cognition.
This last claim entailed difficulties of its own, such as how atoms ever overtake each other, if they are moving in the same direction.
This is particularly so given that nothing about a conception of platitudes as 'pretheoretical claims' strictly entails that they reduce to mere banalities (Vision 2004).
Thus descriptive claims cannot entail the extra expressive or imperatival component that according to the non-cognitivist is part of the meaning of moral terms (Hare 1952, 32 49).
Something similar can be said about antiskepticism: antiskeptics are correct when they say we know all sorts of commonsense claims that entail the falsity of skeptical hypotheses.
Further, Witt maintains, trans people are not counterexamples to this claim: transitioning entails that the old social individual has ceased to exist and a new one has come into being.
He thinks we can know banal facts (e.g., we ate breakfast) without knowing limiting/elusive claims they entail (e.g., the past is real) so long as those limiting/elusive claims are true, but we cannot then turn around and employ the former as our basis for knowing the latter.
