Machine Outputs Must Be Checked

The Lymphedema Diagnosis and Treatment Cost Saving Act and steps must be double checked.

The authors take full responsibility for the content of the article. The authors did not receive honoraria for this work. No financial relationships relevant to the content of these letters have been disclosed by the authors or editorial staff. Ferguson can be reached at info.lymphedematreatmentact.org, Llanos can be reached at [email protected], and Bruce can be reached at [email protected]...

Must Time Machine Be Unstable against Vacuum Fluctuations ?

In the appearance of absorption material, the quantum vacuum fluctuations of all kinds of fields may be smoothed out and the spacetime with time machine may be stable against vacuum fluctuations. The chronology protection conjecture might break down, and the anti-chronology protection conjecture might hold: There is no law of physics preventing the appearance of closed timelike curves. PACS num...

How to Believe a Machine-Checked Proof1

Automated Machine-Checked Hybrid System Safety Proofs

We have developed a hybrid system safety prover, implemented in Coq using the abstraction method introduced by [2]. The development includes: a formalisation of the structure of hybrid systems; a framework for the construction of an abstract system (consisting of decidable “over-estimators” of abstract transitions and initiality) faithfully representing a concrete hybrid system; a translation o...

How to Believe a Machine-Checked Proof