The basic idea is that two sets A and B have the same cardinality if there is a bijection from A to B. Since the domain and range of the bijection is not relevant here, we often refer to a bijection from A to B as a bijection between the sets, or a one-to-one correspondence between the elements of the sets.

Those reverend addleheads, convinced of the genuine character of the communications, but with their dominant idea, the devil, in their heads, summoned his highness the prince of darkness to give an account of the matter.

public sector professional services recruitment, has seen a strong seasonal upturn which has incremented year on year since 2002 by an average of 12%.

[…] a zigzag line of Lee-Enfield flashes, and a charge which took the kop at a cost of ten casualties. The victors held the key to the Ladysmith lock.