The Dyck language is a formal language that consists of well-formed strings of balanced parentheses or other types of brackets. It is named after the mathematician Walther von Dyck, who contributed to the study of algebraic structures. The Dyck language is often used in the context of combinatorial mathematics and computer science, particularly in the analysis of syntax in programming languages where such balanced structures are crucial.
ECLR-attributed grammar is a type of formal grammar used in the field of computer science, particularly in programming language design and compiler construction. It combines concepts from context-free grammars with attributes that allow for semantic analysis of the strings generated by the grammar. ECLR itself stands for "Extended Context-Free Language with Attribute Grammars." These grammars extend the capabilities of traditional context-free grammars by incorporating attributes that can be associated with grammar symbols.
Extended Affix Grammar (EAG) is a formalism used in computational linguistics and syntax to describe the structure of languages, particularly in the context of natural language processing. It builds upon traditional context-free grammars but includes additional mechanisms to capture more complex syntactic phenomena.
A formal proof is a rigorous mathematical demonstration that establishes the truth of a statement or theorem through a series of logical deductions based on agreed-upon axioms and inference rules. Formal proofs are characterized by their strict adherence to a defined formal system, which includes: 1. **Axioms**: Fundamental statements or propositions assumed to be true without proof. They serve as the starting point for any arguments or proofs.
Global Index Grammar (GIG) is a theoretical framework in the field of linguistics, specifically within the realm of syntax and grammar. It aims to provide a comprehensive model for understanding the structure of natural languages by utilizing concepts from formal language theory and computational linguistics. GIG focuses on the relationships and dependencies between elements in a language, accounting for both local and global syntactic constructions.
Greibach's theorem is a result in formal language theory, particularly in the context of context-free grammars and the equivalence of certain classes of grammars. Named after Sheila Greibach, the theorem states that for every context-free language, there exists a context-free grammar in Greibach normal form (GNF). A grammar is in Greibach normal form if the right-hand side of every production rule consists of a single terminal symbol followed by zero or more nonterminal symbols.
Formal languages and literal strings are fundamental concepts in the fields of computer science, linguistics, and mathematics. Below is a list of topics related to formal languages and literal strings: ### Formal Language Topics: 1. **Alphabets**: The basic building blocks of formal languages, usually defined as finite sets of symbols. 2. **Strings**: Finite sequences of symbols drawn from an alphabet.
A **nested word** is a concept from formal language theory and computer science, specifically related to the study of formal grammars and automata. Nested words extend the traditional notion of words (linear sequences of symbols) to capture hierarchical structures, such as those found in programming languages or nested constructs in natural languages.
An **ω-regular language** is a type of formal language that is particularly used in the context of infinite sequences or infinite words. Unlike regular languages, which are defined over finite strings and can be recognized by finite automata, ω-regular languages specifically deal with infinite sequences, making them suitable for applications in areas such as formal verification, automata theory, and model checking.
Parsing Expression Grammar (PEG) is a formal grammar framework used to describe the syntax of languages, particularly programming languages and data formats. Unlike traditional context-free grammars (CFGs), which use production rules and can produce ambiguities, PEGs are designed to avoid such ambiguities by using a more structured approach. ### Key Features of PEG: 1. **Parsing Expressions**: PEGs define parsing rules as expressions, which can include sequences, choices, and repetitions.
A **recursively enumerable language** (often abbreviated as RE language) is a type of formal language that can be recognized by a Turing machine. Here are some key characteristics and definitions related to recursively enumerable languages: 1. **Turing Machines**: A Turing machine is a theoretical computational model that can simulate any algorithm's logic.
Regulated rewriting is a formalism used in the study of formal languages and systems, particularly in the fields of computer science and mathematical logic. It refers to a specific type of rewriting system where certain conditions or rules (regulations) control how and when the rewriting rules can be applied. In traditional rewriting systems, a set of rewriting rules defines how strings or terms can be transformed into one another.
Splicing rules generally refer to guidelines or principles used in various fields, such as genetics, computer science, and linguistics. Here are a few contexts where the term "splicing rule" is commonly applied: 1. **Genetics**: In the context of molecular biology, splicing refers to the process by which introns (non-coding regions) are removed from pre-messenger RNA (pre-mRNA) and exons (coding regions) are joined together to form mature mRNA.
The Journal of Automated Reasoning is a scientific journal that publishes research related to automated reasoning, which is a field of computer science and mathematical logic focused on the development of algorithms and systems that can reason, deduce, and derive conclusions automatically. The topics covered in the journal may include automated theorem proving, model checking, formal methods, and various approaches to reasoning such as logical systems, proof assistants, and decision procedures.
Alvin Goldman is a prominent American philosopher known for his work in epistemology, the study of knowledge, and philosophy of mind. He has made significant contributions to discussions concerning the nature of knowledge, belief, and justification. One of his notable theories is the social epistemology perspective, which emphasizes the social dimensions of knowledge acquisition and dissemination.
Amélie Rorty is a prominent American philosopher known for her work in moral philosophy, epistemology, and the philosophy of literature. She has contributed significantly to discussions on issues such as the nature of practical reason, the interplay between ethics and narrative, and the role of emotions in moral reasoning. Rorty has written extensively on various philosophical topics and has been influential in bridging the gap between philosophy and literature. Her work often explores the implications of narrative and storytelling in understanding moral and ethical concepts.
Antti Revonsuo is a Finnish cognitive neuroscientist and philosopher known for his work on the nature of consciousness and the study of the mind. He is particularly noted for his research on the relationship between consciousness and the brain, and he has contributed to the fields of philosophy of mind and cognitive science. Revonsuo is also recognized for his "simulation theory of dreams," which proposes that dreaming serves a protective and preparatory function by simulating threats in a safe environment.
Charles Hartshorne (1897–2000) was an American philosopher best known for his work in process philosophy and metaphysics, particularly in relation to the ideas of Alfred North Whitehead. Hartshorne's philosophy emphasized the dynamic and relational aspects of existence, positing that reality is characterized by change and that God is a being who is both in process and who interacts with the world.
David Bentley Hart is an American theologian, philosopher, and cultural commentator. Born in 1965, he is known for his work in the fields of religious studies, philosophy, and the interpretation of Christian theology. Hart has written extensively on a variety of topics, including metaphysics, ethics, and the nature of existence. He is particularly noted for his defense of Eastern Orthodox Christianity and his critiques of modern secularism and atheism.

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