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# Seven Bridges of Königsberg

The Seven Bridges of Königsberg is a historically notable problem in mathematics. [1]

## Aristotelianism

Aristotelianism is a tradition of philosophy that takes its defining inspiration from the work of Aristotle.

## Bombing of Königsberg in World War II

The bombing of Königsberg was a series of attacks made on the city of Königsberg in East Prussia during World War II.

## Carl Hierholzer

Carl Hierholzer (2 October 1840 – 13 September 1871) was a German mathematician.

## Christchurch

Christchurch (Ōtautahi) is the largest city in the South Island of New Zealand and the seat of the Canterbury Region.

## Combinatorics

Combinatorics is an area of mathematics primarily concerned with counting, both as a means and an end in obtaining results, and certain properties of finite structures.

## Connectivity (graph theory)

In mathematics and computer science, connectivity is one of the basic concepts of graph theory: it asks for the minimum number of elements (nodes or edges) that need to be removed to disconnect the remaining nodes from each other.

## Eulerian path

In graph theory, an Eulerian trail (or Eulerian path) is a trail in a finite graph which visits every edge exactly once.

## Five room puzzle

This classical, popular puzzle involves a large rectangle divided into five "rooms".

## Gasthaus

A Gasthaus (also called Gasthof, Landhaus, or Pension) is a German-style inn or tavern with a bar, a restaurant, banquet facilities and hotel rooms for rent.

## Gene Polisseni Center

The Gene Polisseni Center is an ice arena on the Rochester Institute of Technology campus in Henrietta, New York.

## Glossary of graph theory terms

This is a glossary of graph theory terms.

## Gordian Knot

The Gordian Knot is a legend of Phrygian Gordium associated with Alexander the Great.

## Graph theory

In mathematics, graph theory is the study of graphs, which are mathematical structures used to model pairwise relations between objects.

## Hamiltonian path

In the mathematical field of graph theory, a Hamiltonian path (or traceable path) is a path in an undirected or directed graph that visits each vertex exactly once.

## History of mathematics

The area of study known as the history of mathematics is primarily an investigation into the origin of discoveries in mathematics and, to a lesser extent, an investigation into the mathematical methods and notation of the past.

## Icosian game

The icosian game is a mathematical game invented in 1857 by William Rowan Hamilton.

## James R. Newman

James Roy Newman (1907–1966) was an American mathematician and mathematical historian.

Kaliningrad (p; former German name: Königsberg; Yiddish: קעניגסבערג, Kenigsberg; r; Old Prussian: Twangste, Kunnegsgarbs, Knigsberg; Polish: Królewiec) is a city in the administrative centre of Kaliningrad Oblast, a Russian exclave between Poland and Lithuania on the Baltic Sea.

## Königsberg

Königsberg is the name for a former German city that is now Kaliningrad, Russia.

## Kingdom of Prussia

The Kingdom of Prussia (Königreich Preußen) was a German kingdom that constituted the state of Prussia between 1701 and 1918.

## Kneiphof

Coat of arms of Kneiphof Postcard of Kneiphöfsche Langgasse Reconstruction of Kneiphof in Kaliningrad's museum Kneiphof (Knypava; Knipawa) was a quarter of central Königsberg, Germany.

## Leonhard Euler

Leonhard Euler (Swiss Standard German:; German Standard German:; 15 April 170718 September 1783) was a Swiss mathematician, physicist, astronomer, logician and engineer, who made important and influential discoveries in many branches of mathematics, such as infinitesimal calculus and graph theory, while also making pioneering contributions to several branches such as topology and analytic number theory.

## New Zealand

New Zealand (Aotearoa) is a sovereign island country in the southwestern Pacific Ocean.

## Oktyabrsky Island

Oktyabrsky Island (Остров Октябрьский) is an island in the Pregolya River in Kaliningrad, capital of Kaliningrad Oblast, an exclave of Russia.

## Parity (mathematics)

In mathematics, parity is the property of an integer's inclusion in one of two categories: even or odd.

## Pregolya River

The Pregolya or Pregola (Прего́ля; Pregel; Prieglius; Pregoła) is a river in the Russian Kaliningrad Oblast exclave.

## Quantity

Quantity is a property that can exist as a multitude or magnitude.

## Rochester Institute of Technology

Rochester Institute of Technology (RIT) is a private doctoral university within the town of Henrietta in the Rochester, New York metropolitan area.

## Tōrō

In Japan a "灯篭" is just a simplified form of "灯籠".

## Three utilities problem

The classical mathematical puzzle known as the three utilities problem; the three cottages problem or sometimes water, gas and electricity can be stated as follows: The problem is an abstract mathematical puzzle which imposes constraints that would not exist in a practical engineering situation.

## Topology

In mathematics, topology (from the Greek τόπος, place, and λόγος, study) is concerned with the properties of space that are preserved under continuous deformations, such as stretching, crumpling and bending, but not tearing or gluing.

## University of Canterbury

The University of Canterbury (Te Whare Wānanga o Waitaha; postnominal abbreviation Cantuar. or Cant. for Cantuariensis, the Latin name for Canterbury) is New Zealand's second oldest university.

## World view

A world view or worldview is the fundamental cognitive orientation of an individual or society encompassing the whole of the individual's or society's knowledge and point of view.

## References

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