(often cited in more accessible documentation)
Major Section: ACL2 Documentation
:BACKCHAIN-LIMIT-RW
:BACKTRACK
:BY
:CASES
encapsulate events
defun'd functions
ld
defun'd functions
mutual-recursion
forced case-splits
:DO-NOT
:DO-NOT-INDUCT
forced splits
:EXPAND
:GUARD-HINTS
:HANDS-OFF
rebuild
forced hypotheses are attacked immediately
:INDUCT
ld's response to an error
ld
ld suppresses details when printing
ld prints the result of evaluation
ld evaluates
ld prints the forms to be eval'd
ld
ld prints ``ACL2 Loading ...''
:MEASURE
:MODE
nil
:NO-THANKS
:NON-EXECUTABLE
:NONLINEARP
:NORMALIZE
NTH/UPDATE-NTH expressions
defpkgs
ld
o< is well-founded on o-ps
:REORDER
:RESTRICT
:definition and :rewrite rules used in preprocessing
:STOBJS
:rewrite, :meta, or :linear rule
:USE
stable-under-simplificationp flag
:use hints for enabled :rewrite rules
brr mode
ld without state -- a short-cut to a parallel universe
wormhole
defun
Perhaps as the system matures this section will become more structured.