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null set

null set

1 6.2
A set that has no members
  • noun
  • /nʌl sɛt/
  • Specialized
translation icon : conjunto vacío
  • It's kind of the baseline or the null set for this research data.

It's kind of the baseline or the null set for this research data.

Examples

  • When trying to find a common solution, we discovered that the answer was a null set.

  • And if that is a null set, what options remain?

    Blog text (15)
  • If we take the intersection of all those, we quickly arrive at a null set.

    Blog text (11)
  • So let's start with the nil set of elements or null set of elements R and let's start inserting.

  • We can rule out the special interest model; the only special interest that "won" under EGTRRA was the group that knew with certainty it would die in 2010, a null set.

    Blog text (29)
  • Detailed examination of the database shows that, under the restrictions suggested in the model, the user arrives at a null set: the map showing good locations for troop movements is empty.

    Academic text (1991)
  • In mathematics, the null set is defined as a set that contains no elements at all.

  • The teacher explained that a null set is also known as an empty set in set theory.

How Many

infinite
183 4.2
many
9 1.0
cardinality
  • Specialized
3 9.9
several
1.0
one
1.0
null set
  • Specialized
1 6.2

Surface Forms

null set singular
null sets plural

Morphology

null + set

The meaning 'a set that contains no elements' is directly and compositionally derived from 'null' (indicating nothing/no data) + 'set' (a collection of elements). This is a standard mathematical term with a transparent logic that is cross-linguistically common, so a B1 learner who knows both constituents should be able to infer the meaning.

Etymology

Null set uses the word null, meaning 'none', and set, meaning a group of things. Think of an empty box with nothing inside — a null set is that empty group, so it means 'a set that contains no elements'.