Skip to main content
countably

countably

9.0
In a way that can be counted or listed, like numbers
  • adverb
  • /ˈkaʊntəblɪ/
  • Specialized
translation icon : contablemente
  • In mathematics, a set is considered countably infinite if its elements can be paired with the natural numbers.

So implicitly in a lot of my research, which I have to add an additional assumption that there exists, maybe countably many inaccessible Cardinals.

Examples

  • Separable, meaning the pre Hilbert space has a countably dense subset.

  • So there are countably many definitions of sets of natural numbers in English.

  • But there may be more than countably many sets of things.

  • So implicitly in a lot of my research, which I have to add an additional assumption that there exists, maybe countably many inaccessible Cardinals.

  • You can always find an orthonormal countably infinite orthonormal subset of H.

  • There are countably many integers between any two rational numbers.

  • The researcher demonstrated that every sequence of real numbers is countably infinite in length.

Surface Forms

countably positive

Morphology

countably = countable (transparent) = count + able + ly

Clear and regular adverbial formation from the adjective 'countable' by adding the productive suffix '-ly'.

Etymology

Countably comes from the common word count meaning 'to number or list' and the part -able meaning 'can be', so it means 'in a way that can be counted'. In math, this idea usually means you can put the items into a list, even if the list goes on forever.