List of Changes for Prooftree

2011-11-01

• Improved support for existential variables
  • Dialog for marking introduction and instantiation points of existential variables
  • Use a different color for branches that are proved but have non-instantiated existential variables
  • display not instantiated existential variables in tool-tips, sequent and proof command displays
• several bug fixes

2011-10-04

• in sync with Proof General version 4.1
• several bug fixes

2011-08-11

• User interface changes
  • extra sequent and proof command windows on double click and shift click
  • move proof tree by dragging with mouse button 1
  • main menu with new help, about, exit items
  • progress message between Dismiss and Menu button
  • new Configuration dialog and support for user specific configurations
  • tool tips show proof commands and sequents
• man page added
• several fixes and small changes

2011-06-14

• support starting prooftree in the middle of a proof
• display extra windows with the complete sequent text or the complete proof command on mouse button 2
• the clone button yields a frozen copy of the proof tree
• branches that are finished by a cheating tactic (such as admit or sorry) are colored in red
• keep proof tree windows when retracting in a big step to a point before the proof

2011-04-21

• Show, Focus and Unfocus work.

2011-04-20

• Update existential variables when they are instantiated (as far as possible)
• fix sequent window showing outdated text

2011-04-18

• first release