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Set Partition Block Disjointness Pair Tool

Calculate set partition block disjointness pair from explicit caller-supplied inputs.

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Description

Return distinct shared witnesses in first-list order and disjoint when that witness list is empty.

A finite set records membership, while a multiset also records multiplicity. An ordered set adds an ordering rule, and an interval adds endpoint-closure choices. A witness for one element, a count budget, and equality of complete sets establish different facts.

Return distinct shared witnesses in first-list order and disjoint when that witness list is empty.

When to use this tool

Use Set Partition Block Disjointness Pair when you need the stated finite-set, interval, multiplicity, membership, or ordering operation under the given equality convention.

How to use the tool and how it works

  1. Enter first, second. Keep parallel arrays aligned. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read disjoint, witnesses. Inspect disjoint before interpreting the associated values.

Return distinct shared witnesses in first-list order and disjoint when that witness list is empty.1

Input fieldMeaning and unitsAccepted input
firstFirstRequired. Array of text; maximum UTF-16 length 8192; maximum items 256.
secondSecondRequired. Array of text; maximum UTF-16 length 8192; maximum items 256.
Output fieldInterpretationReturned shape
disjointDisjointRequired. Boolean.
witnessesWitnessesRequired. Array of text; maximum UTF-16 length 8192; maximum items 256.
json
{
  "input": {
    "first": [
      "a",
      "b"
    ],
    "second": [
      "b",
      "c"
    ]
  },
  "output": {
    "disjoint": false,
    "witnesses": [
      "b"
    ]
  }
}

Limitations and assumptions

  • Exact string membership ignores duplicate multiplicity. The tool does not validate a partition, compare nested structured sets, or interpret real-world record identity.
  • The field tables state structural bounds; the mechanics also specify cross-field constraints. Malformed inputs and unsupported domains cause errors. A successful false flag, empty branch value, or zero placeholder has the meaning stated above and is distinct from an input error.
  • Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Signed zero is exported as zero.

Alternative or Complementary methods

Use a full set operation when one element or count cannot establish the required relation. Preserve the distinction between strings, typed scalar atoms, nested sets, ordered lists, and multisets.

References

  1. Calculation and input contract: set/set-partition-block-disjointness-pair — tool.io

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