Errett Albert Bishop (July 14, 1928 – April 14, 1983)[1] was an American mathematician known for his work on analysis.
Errett Bishop's father, Albert T. Bishop, graduated from the United States Military Academy at West Point, ending his career as professor of mathematics at Wichita State University in Kansas.
He completed his Ph.D. in 1954 under Paul Halmos; his thesis was titled Spectral Theory for Operations on Banach Spaces.
He spent the 1964–65 academic year at the Miller Institute for Basic Research in Berkeley.
In the later part of his life, Bishop was seen as the leading mathematician in the area of constructivist mathematics.