Everett Dean Martin (1885–1968) was an American philosopher and scholar known for his contributions to the fields of education, philosophy, and human development. He is particularly noted for his work in the area of educational philosophy and his influence on progressive education. Martin emphasized the importance of experiential learning and the development of critical thinking skills in education. In addition to his work in philosophy and education, Martin also wrote extensively on the philosophy of religion and the role of ethics in human behavior.
A precondition is a condition or requirement that must be satisfied or fulfilled before a certain action or function can be executed or a particular scenario can take place. In programming and software development, preconditions are often used to specify the necessary state of the system or inputs required for a function or method to perform correctly. For example, in a function that calculates the square root of a number, a precondition might be that the input number must be non-negative.
In mathematical logic, \( Q_0 \) typically refers to a specific formal system or fragment within the broader context of arithmetic or set theory. Specifically, \( Q_0 \) might denote the system of **primitive recursive arithmetic**, which consists of the primitive recursive functions and the axioms necessary to reason about them.
Type-1 Ordered Weighted Averaging (OWA) operators are a generalization of traditional averaging operators that are used in decision-making processes, particularly in the context of fuzzy logic and uncertainty. The OWA operator was introduced by Ronald R. Yager in the 1980s. ### Key Features of Type-1 OWA Operators: 1. **Ordered Weighted Averaging**: OWA operators allow for the aggregation of input values by first ordering them and then taking a weighted sum.
Formal methods tools are software applications and frameworks that apply formal methods—mathematical techniques for specifying, developing, and verifying software and systems—to help ensure their correctness, reliability, and security. These tools are particularly valuable in systems where failures can have significant consequences, such as in aerospace, automotive, telecommunications, and safety-critical applications. Here are some key aspects of formal methods tools: 1. **Specification**: Tools help in creating precise mathematical models of systems or software.
Dependability refers to the quality of being trustworthy and reliable. It encompasses several attributes, including: 1. **Reliability**: The ability of a system to perform its intended functions consistently over time without failure. In technical contexts, this often refers to how well systems can operate under specified conditions. 2. **Availability**: This aspect deals with the readiness of a system when needed. High availability means that a system is operational and accessible when required.
Dynamic Timing Verification (DTV) is a technique used in the field of digital circuit design and verification to analyze and confirm that a design meets its timing requirements during operation. Unlike static timing analysis, which checks timing across all possible input combinations using worst-case scenarios, DTV focuses on validating timing behavior under actual operating conditions and specific input sequences, typically in a pre-silicon verification setting.
Model-based specification is a technique used in system and software engineering that involves creating abstract representations or models of a system to define, analyze, and verify its functions and requirements. These models serve as a blueprint for understanding how the system should behave, its structure, and its interactions with other systems or components. ### Key Aspects of Model-based Specification: 1. **Abstraction**: It allows the complex details of a system to be abstracted out, focusing instead on high-level requirements and behaviors.
Robbins algebra is a type of algebraic structure that arises in the study of Boolean algebras and is associated with the work of the American mathematician Herbert Robbins. It is defined by a particular set of operations and axioms. The key characteristics of Robbins algebra are: 1. **Operations**: It typically includes at least two binary operations, usually denoted as \( \cdot \) (for conjunction or multiplication) and \( + \) (for disjunction or addition).
A troland (symbol: Td) is a unit of measurement used in vision science to quantify the luminous intensity of light that strikes the retina. It is defined as the illuminance (in lux) that produces a specific luminance (in candelas per square meter) in the retina when viewed through a standard observer's pupil, which typically has a diameter of 7 millimeters.
Friedrich Kambartel was a German philosopher known for his work in the fields of philosophy of language, epistemology, and the philosophy of science. He is noted for his contributions to the understanding of linguistic meaning, reference, and the nature of scientific theories. He engaged with the works of notable philosophers and added his perspectives on issues related to language and knowledge.
Ingo Brigandt is a philosopher known for his work in the fields of philosophy of biology and philosophy of science. His research often explores topics related to the nature of biological categories, the concepts of species, and the implications of evolutionary theory for understanding biological kinds. Brigandt has engaged with issues such as the implications of developmental biology, the role of genetics in species classification, and the philosophical treatment of biological questions.
Kah Kyung Cho, also known as K.K. Cho, is a prominent figure in the fields of neuroscience and biophysics. He has made significant contributions to the understanding of cellular processes, particularly in the context of neuronal signaling and the molecular mechanisms underlying various neurological disorders. His work often involves integrating techniques from physics and biology to investigate the complex interactions within neural systems.
Karolina Hübner is not widely recognized in popular culture or common knowledge as of my last update. If she is a public figure, such as an artist, academic, or any other notable individual who gained prominence after October 2023, I would not have information regarding her.
Lilli Alanen is a philosopher known for her work in the fields of metaphysics, philosophy of language, and philosophy of mind. She has contributed to discussions on topics such as the nature of self and personal identity, as well as theories of meaning and reference. Alanen often engages with issues related to subjectivity and the social dimensions of self-understanding. Additionally, her work may explore the intersection of these topics with contemporary debates in philosophy.
As of my last knowledge update in October 2021, Manuel Curado could refer to individuals or topics that may not be widely recognized or documented, and information may not be readily available. If this is a person, it could refer to someone who is not a public figure or someone who has become relevant after 2021.
Matthew Boyle is not a widely recognized figure or term in popular culture, academia, or general knowledge as of my last knowledge update in October 2023. It's possible that he may refer to a private individual, a less well-known public figure, or an emerging personality in a specific field. If you have more context about who Matthew Boyle is or the specific area of interest (such as politics, sports, arts, etc.
Naomi Eilan is known as a prominent professor, philosopher, and author, particularly recognized for her work in the fields of philosophy of mind, consciousness, and the nature of human experience. She has contributed to discussions on topics such as perception, imagination, and the interplay between language and thought.
Paavo Pylkkänen is a Finnish philosopher, known for his work at the intersection of philosophy, cognitive science, and the philosophy of mind. He has contributed to discussions on issues such as consciousness, perception, and the nature of reality, often drawing on insights from both philosophy and empirical research in cognitive science. His work explores themes related to the nature of human experience, intentionality, and the relationship between mind and body.
A Verification Condition Generator (VCG) is a tool used primarily in formal verification, which is a method for ensuring the correctness of hardware and software systems. The main purpose of a VCG is to take a program or system specification and generate verification conditions (VCs) that must be satisfied for the program to be considered correct according to its specification.

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!
We have two killer features:
  1. 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-calculus
    Articles 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/derivative
  2. 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.
    Figure 2.
    You can publish local OurBigBook lightweight markup files to either https://OurBigBook.com or as a static website
    .
    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.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
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