The following notations are in common use: H:f≃g (rel A) means that H is a homotopy rel A from f to g....

Let fear give worse intelligence through your eyes, Make pale your lips, and so bechalk your cheeks That he shall stare as wild!

Swimming is good exercise.

Meanwhile, the taxpayer picked up the tab for over 50% of track and train costs at Northern, Merseyrail and the Transport for Wales rail operation.