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Completeness vs X - What's the difference?

completeness | x |

As a noun completeness

is the state or condition of being complete.

As a letter x is

the twenty-fourth letter of the.

As a symbol x is

voiceless velar fricative.

completeness

English

(wikipedia completeness)

Noun

(-)
  • the state or condition of being complete
  • (logic) The property of a logical theory that whenever a wff is valid then it must also be a theorem. Symbolically, letting T'' represent a theory within logic ''L'', this can be represented as the property that whenever T \vDash \phi is true, then T \vdash \phi must also be true, for any wff ''φ'' of logic ''L .
  • *
    • THEOREM 37°. (Gödel's completeness theorem 1930.) In the predicate calculus H'':
    (a) ''If'' \vDash F [''or even if'' \aleph_0-\vDash F], ''then'' \vdash F. ''If'' E_1, . . . , E_k \vDash F [''or even if'' E_1, . . . , E_k \ \aleph_0-\vDash F], ''then     E_1, . . . , E_k \vdash F.
    (b) [...]

    Synonyms

    *(state of being complete ): completion

    Antonyms

    * incompleteness

    x

    Translingual

    {{Basic Latin character info, previous=W, next=Y, image= (wikipedia X)

    Etymology 1

    Letter

  • The twenty-fourth letter of the .
    • See also
    (Latn-script)

    Cardinal number

    (mul-number)
  • The number 10.

    • Symbol

    (mul-symbol)
  • A symbol of the IPA, representing a voiceless uvular fricative.
  • strike

    • Etymology 2

    Possibly from skull and crossbones

    Symbol

    (mul-symbol)
    • Derived terms
    * XXX

    See also

    {{Letter , page=X , NATO=X-ray , Morse=–··– , Character=X , Braille=? }} Image:Latin X.png, Capital and lowercase versions of X , in normal and italic type Image:Fraktur letter X.png, Uppercase and lowercase X in Fraktur Roman numerals ----