The propositional calculus is a branch of logic. It is also called propositional logic, statement logic, sentential calculus, sentential logic, or sometimes zeroth-order logic. It deals with propositions and relations between propositions, including the construction of arguments based on them. Compound propositions are formed by connecting propositions by logical connectives representing the truth functions of conjunction, disjunction, implication, equivalence, and negation. Some sources include other connectives, as in the table below.
The Mandelbrot set is a two-dimensional set with a relatively simple definition that exhibits great complexity, especially as it is magnified. It is popular for its aesthetic appeal and fractal structures. The set is defined in the complex plane as the complex numbers for which the function does not diverge to infinity when iterated starting at , i.e., for which the sequence , , etc., remains bounded in absolute value.
Kingfisher plc is a British multinational retailing company headquartered in London, England.
In mathematics, a binary operation is commutative if changing the order of the operands does not change the result. It is a fundamental property of many binary operations, and many mathematical proofs depend on it. Perhaps most familiar as a property of arithmetic, e.g. "3 + 4 = 4 + 3" or "2 × 5 = 5 × 2", the property can also be used in more advanced settings. The name is needed because there are operations, such as division and subtraction, that do not have it ; such operations are not commutative, and so are referred to as noncommutative operations. The idea that simple operations, such as the multiplication and addition of numbers, are commutative was for many years implicitly assumed. Thus, this property was not named until the 19th century, when mathematics started to become formalized. A similar property exists for binary relations; a binary relation is said to be symmetric if the relation applies regardless of the order of its operands; for example, equality is symmetric as two equal mathematical objects are equal regardless of their order.
A steel roller coaster is a roller coaster that is defined by having a track made of steel. Steel coasters have earned immense popularity in the past 50 years throughout the world. Incorporating tubular steel track and polyurethane-coated wheels, the steel roller coasters can provide a taller, smoother, and faster ride with more inversions than a traditional wooden roller coaster.
B&Q Limited is a British multinational DIY and home improvement retailing company, with headquarters in Eastleigh, England. It is a wholly owned subsidiary of Kingfisher plc. It was founded in March 1969 by Richard Block and David Quayle.
Madagascar competed at the 2000 Summer Olympics in Sydney, Australia.
The women's 4 × 100 metres relay races at the 2000 Summer Olympics as part of the athletics program were held on Friday, 29 September and Saturday, 30 September.
The Bangladesh women's national cricket team is the team that represents the country of Bangladesh in international women's cricket matches. They made their international debut when they played, and won, two matches against Thailand in July 2007 before participating in and winning the 2007 ACC Women's Tournament. Bangladesh were granted One-Day International (ODI) status in 2011 after finishing fifth in the 2011 Women's Cricket World Cup Qualifier. They subsequently qualified for the 2014 ICC Women's World Twenty20 as hosts, making their first appearance at a top-level women's international tournament. They have also won the 2018 edition of ACC Women's Asia Cup. This was the only instance in ACC Women's Asia Cup where any team other than India won the tournament. However, they finished fifth in the next edition of Women's Asia Cup, but has since went on to become one of the most competitive women's cricket teams in Asia. The team made its first World Cup appearance at the 2022 Women's Cricket World Cup, and has participated in every edition of the World Twenty20 since making its debut at the 2014 edition.
BenQ Corporation is a Taiwanese multinational company that sells and markets technology products, consumer electronics, computing and communications devices under the "BenQ" brand name, which stands for the company slogan Bringing Enjoyment NQuality to life. Its principal products include Televisions, LCD monitors, projectors, interactive displays, speakers, lighting, peripherals, and mobile computing devices.
NA-144 Khanewal-I is a constituency for the National Assembly of Pakistan.
Nicolás Barrientos is a Colombian professional tennis player. Barrientos reached his highest ATP singles ranking of world No. 237 on 21 September 2015 and a doubles ranking of world No. 50 on 4 March 2024. He has won one ATP doubles title at the 2024 Rio Open with Rafael Matos. He competes mainly on the ATP Challenger Tour both in singles and doubles.
The women's 3000 metres event at the 2015 European Athletics Indoor Championships was held on 6 March at 13:25 (heats) and on 7 March at 18:50 (final) local time.
Richard Veenstra is a Dutch professional darts player who currently plays in Professional Darts Corporation (PDC) events. He is a Dutch Open champion, BDO World Trophy and Finder Darts Masters finalist and a medalist of the WDF World Cup and WDF Europe Cup.
The 2019–20 Liga IV was the 78th season of the Liga IV, the fourth tier of the Romanian football league system. The champions of each county association play against one from a neighboring county in a playoff to gain promotion. This had to be the third season when the counties were divided into 7 regions, each consisting of 6 counties and the draw was made on 15 February 2019, with 4 months before the first matches.
Dalibor Svrčina is a Czech tennis player. He has achieved a career-high ATP singles ranking of World No. 154 on 2 October 2023 and a doubles ranking of No. 276 on 2 October 2023.
Provincial elections were held in the Pakistani province of Punjab to elect the 14th Provincial Assembly of the Punjab on 10 October 2002, alongside nationwide general elections and three other provincial elections in Sindh, Balochistan and North-West Frontier Province. The remaining two territories of Pakistan, AJK and Gilgit-Baltistan, were ineligible to vote due to their disputed status. The elections were held under the military government of General Pervez Musharraf. The elections saw an end to the two-party system between the Pakistan Peoples Party and the Pakistan Muslim League (N), with the centre-right Pakistan Muslim League (Q) emerging as a third main party supporting Musharraf.
Lean is a proof assistant and programming language. It is based on the calculus of constructions with inductive types. It is an open-source project hosted on GitHub. It was principally developed by Leonardo de Moura while employed by Microsoft Research and now Amazon Web Services, and has had significant contributions from other coauthors and collaborators during its history. Development is currently supported by the non-profit Lean Focused Research Organization (FRO).
Results of India national football team from 1990–1999.
India is scheduled to compete at the 2024 Summer Olympics in Paris from 26 July to 11 August 2024. Indian athletes have appeared in every edition of the Summer Olympic Games since 1920, although they made the team's official debut in Paris 1900.
