Alphabeta Math
ExampleConstruction: Literature-sourcedVerification: AI-adaptedSession-authored (Fable 5 assisted)precheck passaudited 2026-08-02
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  • 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 CC of rational Cauchy sequences and its subset NN 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 CC (Cauchy sequences form a commutative ring).

[L3]

NN is an ideal of CC (Null sequences form an ideal).

[L4]

The null ideal NN is maximal in CC (The null ideal is maximal).

Verification

technique · direct
1.1

The ambient object is the commutative ring CC of [L2], and NN 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 · next 3 levels

Direct dependencies and their dependencies through the next three levels: 26 results over 13 levels. An arrow runs from a result to what uses it, and this result sits at the bottom with a heavier outline. Click the chart to enlarge it.

Sources