Techniques combining machine learning with translation to automated reasoning have recently become an important component of formal proof assistants. Such “hammer” techniques complement traditional proof assistant automation as implemented by tactics and decision procedures. In this paper we present a unified proof assistant automation approach which attempts to automate the selection of approp...

Normal Form In order to fit any grammar into the conditions required by the previously described matching techniques, we demand the following normalisation: 1. lack of labels for production rules 2. lack of named subexpressions 3. lack of terminal symbols 4. maximal outward factoring of inner choices 5. lack of horizontal production rules 6. lack of separator lists 7. lack of trivially defined ...

We present the case of a 64-year-old man who was referred to our service after sustaining a self-inflicted nail-gun injury to his chest. He received three nails penetrated into his chest. Computer tomography revealed no massive haemorrhage or damage to major vessels. He underwent an emergency sternotomy, two nails caused pericardial perforation and myocardial injury were noted easily and remove...

To cite: di Summa PG, Yvon A, Raffoul W, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/ bcr-2014-204779 DESCRIPTION A 34-year-old man, right-handed, smoker, presented to A&E with a 2-month history of pain, numbness and cold sensitivity in the fourth and fifth digits of his right hand. He had not suffered from any recent trauma; his usual activity was carpentr...