# How old is John Conway?

## How old is John Conway?

82 years (1937–2020)
John Horton Conway/Age at death

## When was Conway born?

December 26, 1937
John Horton Conway/Date of birth

Conway was born in Liverpool, England, on December 26, 1937. He received his B.A. from Cambridge University in 1959 and his Ph. D. from the same institution in 1964.

Where was John Horton Conway born?

Liverpool, United Kingdom
John Horton Conway/Place of birth

What did John Conway invent?

Doomsday rule
John Horton Conway/Inventions
For calculating the day of the week, he invented the Doomsday algorithm. The algorithm is simple enough for anyone with basic arithmetic ability to do the calculations mentally. Conway could usually give the correct answer in under two seconds.

### How old is Lisa Piccirillo?

29
PICCIRILLO, WHO IS 29, grew up in Greenwood, Maine, which has a population of less than 900.

### What is the meaning of Conway?

Origin:Welsh. Popularity:4344. Meaning:holy river; hound of the plain.

What is Conway known for?

County Seat. Conway, the seat of Faulkner County, is a well-known center of education in central Arkansas. It is home to Hendrix College and surrounding historic district, the University of Central Arkansas (UCA), and Central Baptist College.

What Is Set Theory?

Set theory is the mathematical theory of well-determined collections, called sets, of objects that are called members, or elements, of the set. So, the essence of set theory is the study of infinite sets, and therefore it can be defined as the mathematical theory of the actual—as opposed to potential—infinite.

## Who Solved the Conway knot?

Lisa Piccirillo
A Tough Knot to Crack. The Conway knot problem confounded mathematicians for more than fifty years. Then Lisa Piccirillo ’13 solved it in less than a week.

## What is slice knot theory?

In knot theory, a “knot” means an embedded circle in the 3-sphere. The 3-sphere can be thought of as the boundary of the four-dimensional ball. A knot. is slice if it bounds a “nicely embedded” 2-dimensional disk D in the 4-ball.