| 2012-01-03 | Christian Urban | updated to explicit set type constructor (post Isabelle 3rd January) | file | diff | annotate |
| 2011-01-17 | Christian Urban | eliminated tracing code; added flag so that equivariance is only proved for the function graph, not the relation | file | diff | annotate |
| 2011-01-15 | Christian Urban | subst also works now | file | diff | annotate |