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2. Double turnstile - Wikipedia

   en.wikipedia.org/wiki/Double_turnstile

   The double turnstile is a binary relation. It has several different meanings in different contexts: This usage is closely related to the single-barred turnstile symbol which denotes syntactic consequence. This is typically done inductively along with restricting the range of a variable assignment, a function mapping each variable symbol to a ...

3. Predicate (mathematical logic) - Wikipedia

   en.wikipedia.org/wiki/Predicate_(mathematical_logic)

   A predicate is a statement or mathematical assertion that contains variables, sometimes referred to as predicate variables, and may be true or false depending on those variables’ value or values. In propositional logic, atomic formulas are sometimes regarded as zero-place predicates. [1] In a sense, these are nullary (i.e. 0- arity) predicates.

4. Wikipedia : Contents/Mathematics and logic

   en.wikipedia.org/wiki/Wikipedia:Contents/...

   Wikipedia's contents: Mathematics and logic. edit · watch. Mathematics is the study of topics such as quantity (numbers), structure, space, and change. It evolved through the use of abstraction and logical reasoning, from counting, calculation, measurement, and the systematic study of the shapes and motions of physical objects.

5. Constant term - Wikipedia

   en.wikipedia.org/wiki/Constant_term

   Constant term. In mathematics, a constant term (sometimes referred to as a free term) is a term in an algebraic expression that does not contain any variables and therefore is constant. For example, in the quadratic polynomial, The number 3 is a constant term. [1]

6. Weak solution - Wikipedia

   en.wikipedia.org/wiki/Weak_solution

   Weak solution. In mathematics, a weak solution (also called a generalized solution) to an ordinary or partial differential equation is a function for which the derivatives may not all exist but which is nonetheless deemed to satisfy the equation in some precisely defined sense. There are many different definitions of weak solution, appropriate ...

7. Pie vs. Tart: The Difference Between These Two ... - AOL

   www.aol.com/pie-vs-tart-difference-between...

   If there was a family tree of pastry, pies and tarts (much like pies versus cobblers) would be on the same delicious branch. Both start out with a bottom layer crust and then are topped with ...

8. AOL Mail

   mail.aol.com

   You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563.

9. Mutual knowledge (logic) - Wikipedia

   en.wikipedia.org/wiki/Mutual_knowledge_(logic)

   Mutual knowledge is a fundamental concept about information in game theory, (epistemic) logic, and epistemology. An event is mutual knowledge if all agents know that the event occurred. [1]: 73 However, mutual knowledge by itself implies nothing about what agents know about other agents' knowledge: i.e. it is possible that an event is mutual ...