Unsupported-titles-left-square-bracket meaning

(mathematics) Begins a mathematical phrase which has increased operator precedence.

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(mathematics) In set builder notation, an inward facing bracket represents a closed endpoint of an interval (an inward facing parenthesis denotes an open endpoint).

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(mathematics) In ISO 31-11 notation, an inward facing bracket denotes a closed endpoint of an interval and an outward facing bracket denotes an open endpoint.

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