James Watson
James Dewey Watson (born April 6, 1928) is an American molecular biologist, geneticistand zoologist, best known as one of the co-discoverers of the structure of DNA in 1953 with Francis Crick. Watson, Crick, and Maurice Wilkins were awarded the 1962 Nobel Prize in Physiology or Medicine “for their discoveries concerning the molecular structure of nucleic acids and its significance for information transfer in living material”.
Converse
Switching the hypothesis and conclusion of a conditional statement. For example, the converse of “If it is raining then the grass is wet” is “If the grass is wet then it is raining.”
Note: As in the example, a proposition may be true but have a false converse.