"unlesss" meaning in English

See unlesss in All languages combined, or Wiktionary

Conjunction

Etymology: Attributed to John Horton Conway. From unless, by analogy with the formation of iff from if. Etymology templates: {{m|en|unless}} unless, {{m|en|iff}} iff, {{m|en|if}} if Head templates: {{en-con}} unlesss
  1. (mathematics, logic) Precisely unless. Categories (topical): Logic, Mathematics

Download JSON data for unlesss meaning in English (2.6kB)

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  "etymology_templates": [
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      "args": {
        "1": "en",
        "2": "unless"
      },
      "expansion": "unless",
      "name": "m"
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    {
      "args": {
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        "2": "iff"
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      "expansion": "iff",
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  "etymology_text": "Attributed to John Horton Conway. From unless, by analogy with the formation of iff from if.",
  "head_templates": [
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      "args": {},
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  "lang": "English",
  "lang_code": "en",
  "pos": "conj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "source": "w"
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          "kind": "other",
          "name": "English terms with 3 consecutive instances of the same letter",
          "parents": [],
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        {
          "kind": "topical",
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          "name": "Logic",
          "orig": "en:Logic",
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      "examples": [
        {
          "text": "1990, James Glimm, The Legacy of John Von Neumann, American Mathematical Society, →ISBN, page 279,\nPartial Order: G ≥ H unlesss (unless and only unless) H ≥ some Gᴿ or some Hᴸ ≥ G."
        },
        {
          "ref": "1999, V. K. Balachandran, Topological Algebras, North-Holland, published 2000, pages 78–79",
          "text": "A subset S is called absorbing if to each x#x5C;inX there is a real number #x5C;epsilon#x3D;#x5C;epsilon#x5F;x#x3E;0 such that #x5C;lambdax#x5C;inS for all #x5C;lambda with 0#x3C;#x5C;left#x7C;#x5C;lambda#x5C;right#x7C;#x5C;le#x5C;epsilon. Trivially the set X is absorbing; on the other hand #x5C;#x7B;0#x5C;#x7D; can never be absorbing (unlesss X#x3D;#x5C;#x7B;0#x5C;#x7D;).",
          "type": "quotation"
        },
        {
          "text": "2004, William Fraser, Susan Hirshberg, and David Wolfe, \"The Structure of the Distributive Lattice of Games Born by Day n\", in Integers: Electronic Journal of Combinatorial Number Theory 5(2) (2005), page 2,\nG ≥ H unlesss H ≥ Gᴿ or Hᴸ ≥ G for some Gᴿ ∈ Gᴿ or some Hᴸ ∈ Hᴸ. ¶ (Analogous to “iff”, the term “unlesss” means “unless and only unless”.)"
        }
      ],
      "glosses": [
        "Precisely unless."
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      "id": "en-unlesss-en-conj-anqChOIN",
      "links": [
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        [
          "Precisely unless",
          "precisely unless"
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      "raw_glosses": [
        "(mathematics, logic) Precisely unless."
      ],
      "topics": [
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    }
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      "expansion": "if",
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  ],
  "etymology_text": "Attributed to John Horton Conway. From unless, by analogy with the formation of iff from if.",
  "head_templates": [
    {
      "args": {},
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      "name": "en-con"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "conj",
  "senses": [
    {
      "categories": [
        "English conjunctions",
        "English entries with incorrect language header",
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      "examples": [
        {
          "text": "1990, James Glimm, The Legacy of John Von Neumann, American Mathematical Society, →ISBN, page 279,\nPartial Order: G ≥ H unlesss (unless and only unless) H ≥ some Gᴿ or some Hᴸ ≥ G."
        },
        {
          "ref": "1999, V. K. Balachandran, Topological Algebras, North-Holland, published 2000, pages 78–79",
          "text": "A subset S is called absorbing if to each x#x5C;inX there is a real number #x5C;epsilon#x3D;#x5C;epsilon#x5F;x#x3E;0 such that #x5C;lambdax#x5C;inS for all #x5C;lambda with 0#x3C;#x5C;left#x7C;#x5C;lambda#x5C;right#x7C;#x5C;le#x5C;epsilon. Trivially the set X is absorbing; on the other hand #x5C;#x7B;0#x5C;#x7D; can never be absorbing (unlesss X#x3D;#x5C;#x7B;0#x5C;#x7D;).",
          "type": "quotation"
        },
        {
          "text": "2004, William Fraser, Susan Hirshberg, and David Wolfe, \"The Structure of the Distributive Lattice of Games Born by Day n\", in Integers: Electronic Journal of Combinatorial Number Theory 5(2) (2005), page 2,\nG ≥ H unlesss H ≥ Gᴿ or Hᴸ ≥ G for some Gᴿ ∈ Gᴿ or some Hᴸ ∈ Hᴸ. ¶ (Analogous to “iff”, the term “unlesss” means “unless and only unless”.)"
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          "precisely unless"
        ]
      ],
      "raw_glosses": [
        "(mathematics, logic) Precisely unless."
      ],
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      ]
    }
  ],
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This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2024-04-24 from the enwiktionary dump dated 2024-04-21 using wiktextract (82c8ff9 and f4967a5). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

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