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2. Number sentence - Wikipedia

   en.wikipedia.org/wiki/Number_sentence

   A valid number sentence that is true: 83 + 19 = 102. A valid number sentence that is false: 1 + 1 = 3. A valid number sentence using a 'less than' symbol: 3 + 6 < 10. A valid number sentence using a 'more than' symbol: 3 + 9 > 11. An example from a lesson plan: [6] Some students will use a direct computational approach.

3. Sentence (mathematical logic) - Wikipedia

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

   In mathematical logic, a sentence (or closed formula) [1] of a predicate logic is a Boolean-valued well-formed formula with no free variables. A sentence can be viewed as expressing a proposition , something that must be true or false.

4. Existential quantification - Wikipedia

   en.wikipedia.org/wiki/Existential_quantification

   For some natural number , =. This is a single statement using existential quantification. It is roughly analogous to the informal sentence "Either 0 × 0 = 25 {\displaystyle 0\times 0=25} , or 1 × 1 = 25 {\displaystyle 1\times 1=25} , or 2 × 2 = 25 {\displaystyle 2\times 2=25} , or... and so on," but more precise, because it doesn't need us ...

5. Gödel's incompleteness theorems - Wikipedia

   en.wikipedia.org/wiki/Gödel's_incompleteness...

   Thus, although the Gödel sentence refers indirectly to sentences of the system F, when read as an arithmetical statement the Gödel sentence directly refers only to natural numbers. It asserts that no natural number has a particular property, where that property is given by a primitive recursive relation (Smith 2007, p. 141). As such, the ...

6. Mathematics - Wikipedia

   en.wikipedia.org/wiki/Mathematics

   Number theory was once called arithmetic, ... or, in North America, math. [71] Ancient. The Babylonian mathematical ... but are included in sentences of the current ...

7. 3 Americans held for years in China released and back in U.S.

   www.aol.com/3-americans-held-years-china...

   Leung, 78, was arrested in 2021 and sentenced to life in prison for espionage in May 2023. Few details have been shared about the case. In a statement addressing Li's release, Senate Majority ...