Alphabeta Math
ExampleConstruction: Literature-sourcedVerification: AI-adaptedprecheck passaudited 2026-08-02
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The first chip identifies the source of the statement or construction; the second identifies the source of its local proof or verification.

  • Literature-sourced: the exact statement appears in a cited source; only wording and notation differ.
  • AI-adapted: a semantically identical restatement of literature-sourced material, modulo indexing, notation, and boundary cases adopted by the library.
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Null rational sequences form a maximal ideal in the ring of rational Cauchy sequences

Example

Null rational sequences form a maximal ideal in the ring of rational Cauchy sequences.

Facts & Assumptions

Given: The ring C of rational Cauchy sequences and its subset N of null sequences.

[L1]

Maximal ideals are maximal among proper ideals (Prime ideals and maximal ideals in a commutative ring).

[L2]

Rational Cauchy sequences form a commutative ring C (Cauchy sequences form a commutative ring).

[L3]

N is an ideal of C (Null sequences form an ideal).

[L4]

The null ideal N is maximal in C (The null ideal is maximal).

Verification

technique · direct
1.1

The ambient object is the commutative ring C of [L2], and N is an ideal by [L3].

L1L2L3L4given
2.1

The maximality statement in [L4] is precisely maximality in the ideal order of [L1].

step 1.1L1L2L3L4given
3.1

Thus null rational sequences give a maximal ideal.

step 2.1∎

Depends on

Used by

Nothing in the library uses this result yet.

Dependency tree · two levels

15 results within two dependency steps of this one, each drawn at its shortest distance from it. An arrow runs from a result to what uses it, so the chart reads left to right and ends at this result, which carries a heavier outline. Every node is a link to that result. Click elsewhere on the chart to enlarge it.

Sources