src/Pure/pure_thy.scala

more robust: allow empty root (e.g. via symlink);

/*  Title:      Pure/pure_thy.scala
    Author:     Makarius

Pure theory content.
*/

package isabelle


object Pure_Thy
{
  val DUMMY: String = "dummy"
  val FUN: String = "fun"
  val PROP: String = "prop"
  val ITSELF: String = "itself"

  val ALL: String = "Pure.all"
  val IMP: String = "Pure.imp"
  val EQ: String = "Pure.eq"
}