Duality is a mathematical principle whereby one true statement can be obtained from another by interchanging two words. Sometimes the wording of a statement needs to be modified so the corresponding dual statement is clear.
Duality is a property that belongs to the lattice theory branch of algebra. Lattice theory is involved with the concepts of order and structure, which is common to different mathematical systems. A mathematical structure is a lattice if it can be ordered in a specified way. Projective geometry, set theory and symbolic logic have principles of duality because they have underlying lattice structures. If the results of a structure to which duality is applied hold in both formations, it is called a dual formulation.Learn More
Underscore an email address by inputting the underscore character between two words; for example, John_Doe. The underscore joins two words or separates letters and numbers when the text cannot have a space. The underscore character also works to create a space in both IP addresses and website user names.Full Answer >
"Cthulhu fhtagn" are two words of a larger phrase from the works of H.P. Lovecraft. The full phrase, "Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn," means "In his house at R'lyeh, dead Cthulhu waits dreaming."Full Answer >
The Ganges river is sacred to Hindus because it is considered to be the extension of God, Lord Shiva, and therefore, the river is divine and an image of the higher power. Not only does the Ganges hold this sacred quality, but it is able to provide water and agricultural food for 350 million people, as well as nurture the endangered Bengal tiger and the blind freshwater dolphin, the susu.Full Answer >
Hasidic Jewish men wear their unique sidecurls as a way of preserving an aspect of Hebrew culture. In addition to their distinctive hairstyles, Hasidic Jews of both genders typically wear styles which were historically popular among Jewish people throughout Europe.Full Answer >