This site is a static rendering of the Trac instance that was used by R7RS-WG1 for its work on R7RS-small (PDF), which was ratified in 2013. For more information, see Home.
Should we add an EXACT-INTEGER? predicate? Currently, to determine whether a number is both an integer and exact, we must test for both, which requires some hackery or poor pattern matching to optimize in existing Scheme implementations.
The WG voted to accept exact-integer?.