See section 4.1 of R7RS for the set of primitive expressions that all Scheme R7RS compliant interpreters must support. This includes variable references, literal expressions (e.g. quote, '), procedure calls, procedure definitions (e.g. lambda), conditionals (if), assignments (set), and inclusion (include).
See section 4.1 of R7RS for the set of primitive expressions that all Scheme R7RS compliant interpreters must support. This includes variable references, literal expressions (e.g. quote, '), procedure calls, procedure definitions (e.g. lambda), conditionals (if), assignments (set), and inclusion (include).