Mercurial Mercurial > repos > isabelle / annotate
summary | shortlog | changelog | graph | tags | bookmarks | branches | files | changeset | file | latest | revisions | annotate | diff | comparison | raw | help
Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
doc-src/IsarAdvanced/Codegen/Thy/examples/nat_binary.ML
author wenzelm
Tue, 14 Oct 2008 15:16:11 +0200
changeset 28586 d238b83ba3fc
parent 26999 284c871d3acb
permissions -rw-r--r--
renamed kill_all to kill, in conformance with atp_kill command; simplified/unified treatment of preferences; check_thread_manager: CRITICAL due to global ref; goal addressing via Thm.cprem_of; reduced NJ basis library stuff to bare minimum;
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
26999
284c871d3acb added new code_datatype example
haftmann
parents:
diff changeset 
     1
 
structure Nat =
284c871d3acb added new code_datatype example
haftmann
parents:
diff changeset 
     2
 
struct
284c871d3acb added new code_datatype example
haftmann
parents:
diff changeset 
     3
 












284c871d3acb
added new code_datatype example



haftmann


parents: 

diff
changeset




     4


datatype nat = Dig1 of nat | Dig0 of nat | One_nat | Zero_nat;













284c871d3acb
added new code_datatype example



haftmann


parents: 

diff
changeset




     5














284c871d3acb
added new code_datatype example



haftmann


parents: 

diff
changeset




     6


fun plus_nat (Dig1 m) (Dig1 n) = Dig0 (plus_nat (plus_nat m n) One_nat)













284c871d3acb
added new code_datatype example



haftmann


parents: 

diff
changeset




     7


  | plus_nat (Dig1 m) (Dig0 n) = Dig1 (plus_nat m n)













284c871d3acb
added new code_datatype example



haftmann


parents: 

diff
changeset




     8


  | plus_nat (Dig0 m) (Dig1 n) = Dig1 (plus_nat m n)













284c871d3acb
added new code_datatype example



haftmann


parents: 

diff
changeset




     9


  | plus_nat (Dig0 m) (Dig0 n) = Dig0 (plus_nat m n)













284c871d3acb
added new code_datatype example



haftmann


parents: 

diff
changeset




    10


  | plus_nat (Dig1 m) One_nat = Dig0 (plus_nat m One_nat)













284c871d3acb
added new code_datatype example



haftmann


parents: 

diff
changeset




    11


  | plus_nat One_nat (Dig1 n) = Dig0 (plus_nat n One_nat)













284c871d3acb
added new code_datatype example



haftmann


parents: 

diff
changeset




    12


  | plus_nat (Dig0 m) One_nat = Dig1 m













284c871d3acb
added new code_datatype example



haftmann


parents: 

diff
changeset




    13


  | plus_nat One_nat (Dig0 n) = Dig1 n













284c871d3acb
added new code_datatype example



haftmann


parents: 

diff
changeset




    14


  | plus_nat m Zero_nat = m













284c871d3acb
added new code_datatype example



haftmann


parents: 

diff
changeset




    15


  | plus_nat Zero_nat n = n;













284c871d3acb
added new code_datatype example



haftmann


parents: 

diff
changeset




    16














284c871d3acb
added new code_datatype example



haftmann


parents: 

diff
changeset




    17


end; (*struct Nat*)















isabelle