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/Tutorial/ToyList/lemma3
author paulson
Fri, 16 Jun 2000 13:15:04 +0200
changeset 9074 2313ddc415a1
parent 5377 efb799c5ed3c
permissions -rw-r--r--
inserted some "addsimps [subset_empty]"; also tidied (a lot)
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
5377
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     1
 
Goal "(xs @ ys) @ zs = xs @ (ys @ zs)";
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     2
 
by(induct_tac "xs" 1);
efb799c5ed3c *** empty log message ***
nipkow
parents:
diff changeset 
     3
 
by(Auto_tac);
isabelle