Expressions
Variables, quotation, procedures, conditionals, assignment, binding forms, sequencing, delayed evaluation, and derived syntax.
Reference
A map for finding R7RS concepts.
This page is the first reference layer: it points from practical questions to the parts of R7RS that answer them, and defines the standard for more detailed entries.
Core Map
Programs and Libraries
Top-level programs, imports, exports, define-library, feature tests, and the REPL boundary.
Macros
syntax-rules, hygiene, derived expressions, syntax definitions, and what R7RS does not standardize.
Data
Booleans, numbers, characters, strings, symbols, pairs, lists, vectors, bytevectors, records, and equivalence.
Control
Proper tail recursion, continuations, multiple values, dynamic extent, exceptions, parameters, and promises.
I/O and System
Ports, file operations, reading, writing, command-line access, environment variables, and process exit.
Use This Map
For exact wording and edge cases, read the linked R7RS report sections. This map is an orientation layer, not a replacement for the standard.