- extensionally
- adverb see extensional

*New Collegiate Dictionary.
2001.*

- extensionally
- adverb see extensional

*New Collegiate Dictionary.
2001.*

**extensionally**— adverb In terms or by means of extension … Wiktionary**extensionally**— ex·ten·sion·al·ly … English syllables**extensionally**— adverb see extensional … Useful english dictionary**Combinatory logic**— Not to be confused with combinational logic, a topic in digital electronics. Combinatory logic is a notation introduced by Moses Schönfinkel and Haskell Curry to eliminate the need for variables in mathematical logic. It has more recently been… … Wikipedia**Extensionality**— In logic, extensionality refers to principles that judge objects to be equal if they have the same external properties. It is the opposite concept of intensionality, which is concerned with whether two descriptions are intended to be the same or… … Wikipedia**Set (mathematics)**— This article gives an introduction to what mathematicians call intuitive or naive set theory; for a more detailed account see Naive set theory. For a rigorous modern axiomatic treatment of sets, see Set theory. The intersection of two sets is… … Wikipedia**extensional**— adjective Date: 1647 1. of, relating to, or marked by extension; specifically denotative 2. concerned with objective reality • extensionality noun • extensionally adverb … New Collegiate Dictionary**Naive set theory**— This article is about the mathematical topic. For the book of the same name, see Naive Set Theory (book). Naive set theory is one of several theories of sets used in the discussion of the foundations of mathematics.[1] The informal content of… … Wikipedia**Principia Mathematica**— For Isaac Newton s book containing basic laws of physics, see Philosophiæ Naturalis Principia Mathematica. The title page of the shortened version of the Principia Mathematica to *56. The Principia Mathematica is a three volume work on the… … Wikipedia**Entailment**— For other uses, see Entail (disambiguation). In logic, entailment is a relation between a set of sentences (e.g.,[1] meaningfully declarative sentences or truthbearers) and a sentence. Let Γ be a set of one or more sentences; let S1 be the… … Wikipedia