(While the logical positivists believed that the only necessarily true propositions were analytic, they did not define " analytic proposition " as " necessarily true proposition " or " proposition that is true in all possible worlds . ")
12.
In his seminal paper " Two Dogmas of Empiricism, " the logician and philosopher W . V . Quine argued that all beliefs are in principle subject to revision in the face of empirical data, including the so-called analytic propositions.
13.
According to Jerry Fodor, " Analytic propositions were largely taken to be " true by virtue of meanings and independently of fact ", while synthetic propositions were not one must conduct some sort of empirical investigation, looking to the world, to determine the truth-value of synthetic propositions.
14.
A common argument might be, " If killing an innocent human is always wrong, and all fetuses are innocent humans, then killing a fetus is always wrong . " Most people would consider such an utterance to represent an analytic proposition which is true " imperatives as hold between indicatives.
15.
*"'Comment : " "'Heuristic art " is an Analytic proposition used sporadically by art critics ( i . e ., algorithmic art exists, therefore heuristic art must exist because all algorithms are heuristics, just as " a red chair " entails the existence of " things that are red " ).
16.
As Ryan puts it : " Rather than being divided between contingent synthetic claims and indubitable analytic propositions, our beliefs constitute a continuous range from a periphery of sense-reports to interior concepts that are comparatively theory-laden and general . " Thus we end up with Quine's'flat'ontology that does not see a distinction between analytic and synthetic objects.
