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-rw-r--r--software/scheme6
1 files changed, 6 insertions, 0 deletions
diff --git a/software/scheme b/software/scheme
index c64d000..dda68f1 100644
--- a/software/scheme
+++ b/software/scheme
@@ -77,3 +77,9 @@ image can be specified with the ``--band`` option at runtime or with
``(disk-restore filename)`` from within the interpreter. Bands are also called
worlds.
+"First Class"
+------------------
+"Procedures as first class objects" is one of the features commonly attributed
+to scheme. What does that mean? SICP describes first class objects as those
+that can be: named by variables, passed as arguments, returned as results,
+and included in data structures.