 Church argued that sentences must stand for truth values, for if sentences stood for propositions, there would only be two propositions. A similar argument that all true sentences stand for the same thing (and that all false sentences stand for a distinct thing) was suggested by Gödel (1944; for an extended discussion of truth values, the slingshot, and generalized truth values see the entry on  truth values).  Here we focus exclusively on Church’s review, and his related commentary in (1956a: §04), which constitute the locus classicus of the Slingshot argument.