Dalet

Dalet (also spelled  or Daleth) is the fourth letter of the Hebrew alphabet. In set theory, mathematicians originally intended to use daleth to represent the fourth transfinite cardinal numbers. The name "dalet" is connected to the word "delet", meaning "door". It also corresponds to the letter "delta" in the Greek alphabet.

 Related pages 

 Hebrew numerals

 References 

Category:Hebrew alphabet