Version 4.3.6

Version 4.3.6 of the KeYmaera X theorem prover.

NOTICE: This update may require you to delete your lemma cache. You can do so by deleting the $HOME/.keymaerax/cache directory on your machine.

Change log:

• Stability improvements for the Foundations of CPS course at Carnegie Mellon.
• Updates to the prover's concrete syntax for function symbols.

KeYmaera X Release 4.3.5

UI bug fixes and stability improvements for the Foundations of CPS course at Carnegie Mellon.

KeYmaera X Release 4.3.4

Minor stability release generalizing the flexibility of the Axiomatic ODE Solver tactic.

KeYmaera X Release 4.3.3

Version 4.3.3 of the KeYmaera X Theorem Prover for Hybrid Systems. Change log:

• Edit: formula editing can rewrite formulas everywhere
• Step into failed tactics to observe partial progress and debug the proof
  • ODE solver generalized to systems written in any order
• Stability advances: Obtain internal details on tactical proof steps
• Simplifier improvements

KeYmaera X Version 4.3.2

Version 4.3.2 of the KeYmaera X theorem prover. Change log:

• Learner’s and Industry Mode
• Simplify differential equation tactics
• Tactic input validation (checks for non-empty input)
• UI Stability and help improvements: locking, model upload button hiding, reduced number of requests when fetching model lists, Mathematica suggestions based on JVM architecture
• Preview: Obtain internal details on tactical proof steps
• Database format upgraded to 4.3.2 with autoupgrade feature

KeYmaera X Version 4.3.1

Change log:

• Get quick usage help with ? menu button on each page
• Import and export for model/proof archive (.kya file).
• Synthesize verified safety metrics from ModelPlex
• Improved automation of ode tactic for differential equations.
• Prover core fixes

KeYmaera X Version 4.3

• Support for Differential Game Logic (dGL)
• ModelPlex web UI integration and source code release (for both controller and model monitors)
• Improvements to axiomatic ODE solver (support for box and diamond properties, as well as in-place solving)
• UI improvements and bug fixes (tactic diff, tactic parser errors)
• Stability improvements (unifier, UI, quantifier instantiation)

Stable Release of KeYmaera X 4.2.2

• Extraction and execution of tactics with input
• Web user interface improvements
• Tactic and lemma download on finished proof

Stable release of KeYmaera X 4.2.1

• Significant performance advances for a snappier interaction with KeYmaera X
• Readability improvements in tactic extraction
• User interface polishing, improvements, and styling, including position highlighting
• Faster database interaction
• Prover core fixes for bound renaming (unexploited)
• Inverse characteristic method for differential invariant generation
• Better command line interfaces

Stable Release 4.2

Stable 4.2 release of KeYmaera X 4.2

• User interface advances
• Tactic extraction, tactic programming, and replay
• Major backend tool improvements
• KeYmaera X runs standalone without the need to install additional tools. Mathematica is recommended as an add-on installation for advanced automation and simulation features.
• Axiomatic differential equation solver with solve-by-proof technology
• ODE tactic for automatic proofs of differential equations
• Invariant and differential invariant generation techniques
• Tutorial import feature
• Faster unification-based tactics
• Significant prover core advances, fixes, and simplifications