Arden Shakespeare R. Woudhuysen of the University of Oxford. , the edition of one canonical play remains to be published: "Measure for Measure", edited by A. R. Braunmuller. What follows is a list of editions published in the third series thus far as of November 2018. The third series is also notable for publishing single-volume editions of certain plays which traditionally form part of the so-called Shakespeare Apocrypha, but for which there is considered good evidence of Shakespeare having at least been part author. Three apocryphal plays have so far been published in this manner. Due to the long period of time
S (set theory) sets" or "the class of all ordinals" include sets from all stages of the iterative hierarchy. Hence such collections cannot be formed at any given stage, and thus cannot be sets. This section follows Boolos (1998: 91). The variables "x" and "y" range over sets, while "r", "s", and "t" range over stages. There are three primitive two-place predicates: The axioms below include a defined two-place set-stage predicate, "Bxr", which abbreviates: "Bxr" is read as “set "x" is formed before stage "r".” Identity, denoted by infix ‘=’, does not play the role in S it plays in other set theories,