ISO TC 211 Geographic information/Geomatics Committee site

ISO/TC 211 Geolexica

Concept greatest lower bound <mathematics>”

Term ID

2236

source

ISO 19107:2019, (E), 3.63

eng

greatest lower bound <mathematics>

minimum <mathematics>

glb <mathematics>

largest element smaller than or equal to all elements of a set contained in an ordered domain <<math>>

Note to entry: `[AA a in A => min(A) <= a] => [AA b in [(b in [AA a in A => b <=a] => [min(A) >= b]]` Any number is a lower bound of `O/` considered as a set of numbers, because any given number is less than any number in `O/` (an admitted vacuous statement since there is no number in `O/`, but true nonetheless). This means that the `min(O/)` must be greater than any number; this `+oo`.

ORIGIN: ISO/TC 211 Glossary of Terms - English (last updated: 2020-06-02)

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info

  • status: valid
  • classification: admitted
  • date accepted: 2019-12-02

Review

last review performed:
(2019-12-02)
status:
final
decision:
accepted
decision event:
Normal ISO processing
notes:
Publication of document ISO 19107:2019(E)