Nothing gets an overly inquisitive auntie or an uncle with unpalatable political views off your back like a Boxing Day fixture.
The Safavid shahs were commonly termed by Western writers Sophie , Sophy , Sophi or Soffi . All these terms were probably corruptions of Ṣafī, the name of the founder of the Safavid Order, rather than of Ṣūfī, as the Safavid supporters called themselves.
About one-half the body has been mined by underhanding into mill holes; but with the adoption of the water drill, shrinkage stoping is being largely used and the larger stopes are mined as at Levack.
Here we shall follow Conway's exposition rather closely. Let L and R be two sets of numbers. Assume that no member of L is greater than or equal to any member of R. Then L|R is a surreal number. All surreal numbers are constructed in this fashion.