The Lelong number is a concept from complex analysis, particularly in the study of plurisubharmonic functions, and is named after the mathematician Pierre Lelong. It provides a measure of the "growth" or "behavior" of a plurisubharmonic function near a point in complex space.
The Harrop formula is an economic concept used in tax policy and public finance, particularly in the context of assessing the relationship between public expenditure and taxation. It primarily refers to a formula introduced by the economist A. Harrop, which relates to the budgetary implications of government policies. The primary purpose of the Harrop formula is to highlight the need for sufficient sources of revenue to fund public services without leading to excessive government borrowing or unsustainable debt levels.
Nicolas Bourbaki is the collective pseudonym of a group of primarily French mathematicians who came together in the 1930s with the goal of reformulating mathematics on an extremely formal and rigorous basis. The group sought to establish a unified foundation for various branches of mathematics, including algebra, topology, and set theory, among others.
In the context of mathematics, "Set theory stubs" typically refers to short articles or entries related to set theory that are incomplete or provide a minimal amount of information. This term is often used in collaborative online encyclopedias or databases, such as Wikipedia, where contributors can help to expand these stubs by adding more detailed content, references, and examples. Set theory itself is a fundamental branch of mathematical logic that studies sets, which are collections of objects.
In the context of decision trees or certain types of graphical models in machine learning and statistics, the "honest leftmost branch" typically refers to a branch or decision path that is made based on the most straightforward or direct criteria without embellishment or bias. Here's a basic breakdown of how this concept might apply: 1. **Decision Trees**: In decision trees, branches represent decisions that lead to outcomes.
William Lane Craig is a contemporary Christian philosopher, theologian, and apologist, known for his contributions to the philosophy of religion and the defense of theism. He was born on July 23, 1949, and has been influential in discussions surrounding the existence of God, especially through his formulation of the Kalam cosmological argument. Craig holds a Ph.D. in Philosophy from the University of Birmingham and a theological degree from Talbot School of Theology.
Bertrand Russell was a prominent philosopher, logician, and social critic whose philosophical views spanned a variety of areas. Here are some key aspects of his thought: 1. **Logic and Analytic Philosophy**: Russell was a foundational figure in the development of modern logic and analytic philosophy. He believed that philosophy should be closely linked to the sciences and that logical analysis was essential for clarifying philosophical problems. His work in logic includes the development of Russell's paradox and contributions to set theory.
Per Martin-Löf is a Swedish logician and computer scientist renowned for his contributions to type theory, proof theory, and constructive mathematics. He is perhaps best known for developing Martin-Löf type theory (MLTT), which is a foundational framework for mathematics and computer science based on intuitionistic logic and dependent types. Martin-Löf's type theory combines ideas from both programming and formal proof systems, allowing for the expression and manipulation of both data and proofs in a unified manner.
William W. Tait is a notable figure in the field of mathematical logic and philosophy, particularly known for his contributions to the foundations of mathematics and his work on the nature of mathematical truth. He has written extensively on issues related to formal systems, consistency, and the philosophical implications of mathematical theories. His research often intersects with topics such as Gödel's incompleteness theorems and the foundations of set theory.
In the context of logic and mathematics, a **predicate** is a statement or function that expresses a property or characteristic of objects from a certain domain. A predicate can take one or more arguments (variables) and evaluates to either true or false depending on the values of those variables. A **predicate variable** is essentially a placeholder for a predicate.
Natural deduction is a formal system in logic used to derive conclusions from premises using a set of inference rules. It was developed in the mid-20th century and is widely used in mathematical logic, philosophy, and computer science. The main idea behind natural deduction is to model how humans typically reason about propositions and their relationships. In natural deduction, a proof is structured as a sequence of statements, where each statement is either an assumption (premise) or a conclusion derived from previous statements using inference rules.
"Bad faith" is a concept that originates from existentialist philosophy and has been widely discussed in various disciplines, including law, ethics, and psychology.
Liberal Christianity is a theological movement within Christianity that emphasizes reason, personal experience, and social justice while often reinterpreting traditional doctrines in light of contemporary knowledge and values. It seeks to reconcile faith with modern scientific understandings, historical-critical approaches to scripture, and an evolving moral framework.
Sentimentalism, in literature, is a movement that emphasizes the expression of emotion and personal feelings, often highlighting the experiences of tenderness, compassion, and deep emotional responses. This literary approach emerged in the 18th century and was particularly prominent in the late 18th and early 19th centuries. It was characterized by a focus on the individual's inner emotional landscape and a belief in the significance of sentiments as a means of understanding human experience.
"Life stance" typically refers to a person's fundamental beliefs, values, and attitudes that shape their approach to life and influence their behavior, decision-making, and worldview. This concept encompasses a range of belief systems, including religious, spiritual, philosophical, and secular perspectives. In discussions about life stance, you might encounter terms like: 1. **Secular Humanism**: A philosophy that emphasizes human values and reason without reliance on religious beliefs.
"On a Supposed Right to Tell Lies from Benevolent Motives" is an essay by the philosopher Immanuel Kant, in which he discusses the moral implications of lying, particularly when such lies are told with the intention of benefiting others. Kant argues that truthfulness is a fundamental principle of morality and that one has an absolute duty to tell the truth, regardless of the potential consequences or motivations behind a lie.
"Archiv der Mathematik" is a mathematical journal that publishes research articles in all areas of pure and applied mathematics. Established in 1949, it is known for its high standards of publication and peer review. The journal aims to facilitate the dissemination of new mathematical findings and fosters communication among mathematicians. As a publication, "Archiv der Mathematik" covers a wide range of mathematical topics, including but not limited to algebra, analysis, geometry, number theory, and applied mathematics.
The year 1968 is significant in the history of computing for several notable reasons, particularly related to developments in software, hardware, and the conception of modern computing concepts. Here are some key events and advancements from that year: 1. **The Dartmouth Conference**: While the conference itself was held in 1956, the legacy of artificial intelligence (AI) was bolstered in 1968 with discussions surrounding computer programs that could demonstrate intelligent behavior, leading to further research and interest in AI.
The Journal of Symbolic Logic is a scholarly publication that focuses on research in the field of symbolic logic and related areas, particularly in mathematical logic, philosophical logic, and the foundations of mathematics. It publishes original research articles, survey papers, and book reviews that contribute to these domains, covering topics such as model theory, proof theory, recursion theory, set theory, and the philosophy of logic.
"Nonlinearity" is a scientific journal that focuses on the study of nonlinear phenomena across various fields of mathematics and physics. It publishes research articles, reviews, and other contributions that address nonlinear dynamics, chaos theory, complex systems, and related areas. The journal aims to provide a platform for researchers to share their findings on theoretical and applied aspects of nonlinear systems.
Pinned article: Introduction to the OurBigBook Project
Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
Intro to OurBigBook
. Source. We have two killer features:
- topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculusArticles of different users are sorted by upvote within each article page. This feature is a bit like:
- a Wikipedia where each user can have their own version of each article
- a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.Figure 1. Screenshot of the "Derivative" topic page. View it live at: ourbigbook.com/go/topic/derivativeVideo 2. OurBigBook Web topics demo. Source. - local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
Figure 3. Visual Studio Code extension installation.Figure 4. Visual Studio Code extension tree navigation.Figure 5. Web editor. You can also edit articles on the Web editor without installing anything locally.Video 3. Edit locally and publish demo. Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.Video 4. OurBigBook Visual Studio Code extension editing and navigation demo. Source. - Infinitely deep tables of contents:
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact





