ε ⋅ s = s ⋅ ε = s. The empty string is the identity element of the concatenation operation. The set of all strings forms a free monoid with respect to ⋅ and ε. ε R = ε. Reversal of the empty string produces the empty string. The empty string precedes any other string under lexicographical order, because it is the shortest of all strings.
The (/ ð ə, ð iː / ()) is a grammatical article in English, denoting persons or things already mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers.
Dear Twitpic Community - thank you for all the wonderful photos you have taken over the years. We have now placed Twitpic in an archived state.
BibMe Free Bibliography & Citation Maker - MLA, APA, Chicago, Harvard
Understanding your money management options as an expat living in Germany can be tricky. From opening a bank account to insuring your family’s home and belongings, it’s important you know which options are right for you. To find out how you can make your money go further, read our guides to finance in Germany.
Thank you for making Chowhound a vibrant and passionate community of food trailblazers for 25 years. We wish you all the best on your future culinary endeavors.
We would like to show you a description here but the site won’t allow us.