HISTORY OF MATHEMATICAL SYMBOLS

HISTORY OF MATHEMATICAL SYMBOLS
• Hungarian-born American mathematician was
The first mathematician to start using----in 1950
To indicate the end of a proof---
Ans- Paul Richard Halmos.

• Warsaw born American mathematician used
Bold C for the complex numbers in his paper
In 1939. Ans- Nathan Jacobson.
• Influential French mathematician and founding
Member of Nicolas Bourbaki group claimed in
his autobiography that he was the first person
to use Greek letter ø for empty set sign in 1939-
Ans- Andre Well.
• German mathematician and logician introduced
the ( A இதை தலைகீழாக எழுதியது ) symbol to
represent universal equantifier in 1935-
Ans- Gerhard Gentzen.
• In 1930, German Mathematician denoted the set
of integers by a fraktur Z with a bar—
Ans- Edmund landau.

• Italian mathematician became the first man to
Use bold N to denote natural number set in 1895.
He was a founder of mathematical logic and set
Theory --- Ans. Giuseppe Peano.

• The use of curly { } for ‘set’ notation initiated by the
founder of set theory. He was a great German –
mathematician. Ans—Georg Ferdinand Cantor.

• Author of the book “Matrices and Determinoids”,
who introduced matrices notations as ‘ [ ]’ in
1013. before the use of square bracket, four vertical
lines were used for the same purpose.
Ans-Cuthbert Edmund Cullis.

• Two vertical bars I I, the notation used for the absolute
Value, were introduced by a German mathematician in
1841 ----Ans—karl Weierstrass.

• The current notation “n!” was first used in 1808 by a
French mathematician who was born at Strasbourg—
Ans—Christian Kramp.