A revision of RRS, itself revised in R3RS.
[“The Revised Revised Report on the Algorithmic Language Scheme”, Clinger, AI Memo 848, MIT Aug 1985].
R4RS without the macros.
A revision of R2RS, revised in R4RS. [“The Revised^3 Report on the Algorithmic Language Scheme”, J. Rees et al, SIGPLAN Notices 21(12):37-79 (Dec 1986)].
A revision of R3RS, revised in R3.99RS. (ftp://altdorf.ai.mit.edu/). [“The Revised^4 Report on the Algorithmic Language Scheme”, W. Clinger et al, MIT (Nov 1991)]. (1994-10-28) [Later revisions?]
[rah] /rɑ/ noun, Egyptian Religion. 1. a sun god of Heliopolis, a universal creator worshiped throughout Egypt (typically represented as a hawk-headed man bearing on his head the solar disk and the uraeus). Symbol, Chemistry. 1. . 1. regular army. [rah] /rɑ/ noun 1. the 10th letter of the Arabic alphabet. 1. rear admiral. 2. […]