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In graph Frontier

Computability

The theory of which problems can in principle be solved by any algorithm and which are provably undecidable.

At a glance

Type
information
Mental models 0
Role in the graph
Connector

Key signals

Cross-disciplinary reach
Disciplines
2
  • Computer Science
  • Theory of Computation
Evidence & development

Dependencies

What this concept builds on and what it makes possible — derived from the atlas’s dependency, causal and structural relations, not from every related edge.

Foundations · builds on

Computabilitydepends onTuring machineEstablished

Open Turing machine →

Defined by the Turing machine.

Mechanism: A problem is computable if a Turing machine can solve it — the definition of mechanical computation.

Enables · leads to

Computational Complexitydepends onComputabilityEstablished

Open Computational Complexity →

Computational Complexity depends on Computability.

System context

Decidabilityis part ofComputabilityEstablished

Open Decidability →

Decidability is a part of Computability.

Halting problemis part ofComputabilityEstablished

Open Halting problem →

The first undecidable problem.

Mechanism: The halting problem is the canonical proof that some questions are beyond any algorithm.

Structural role & consequence

Interpreted from the current atlas graph — what the connections mean, not just how many there are.

  • Currently dark in the atlas: no key date stored · 6 of 6 of its relations lack claim-level evidence.

    atlas representation · Describes the current Thinking OS representation, not the state of the world.

  • Builds on 1 foundation (requires / depends-on / derived-from / emerges-from).

    structural · Structural graph analysis — not a claim of importance, causation or history.

  • Structural neighbourhood: 5 → 14 → 45 concepts reachable within 3 hops.

    structural · Structural reach — being reachable is not the same as being understood.

  • All 5 of its relationships stay within its own discipline — a field-specific concept in the current atlas.

    structural · Structural graph analysis — not a claim of importance, causation or history.

0%

cross-field
5 within-field, 0 cross-field

0 of 6 relations carry evidence · concept has a verified source

Strengths & constraints

Constraints

  • Evidence coverage currently thin in the atlas — few of its relationships carry claim-level evidence. atlas representation
  • No dated history stored — the atlas records no key date for this concept. atlas representation

Conditions

  • Its dependency reading rests on 1 foundation relation. structural
  • Read structurally — most of its relationships carry no external evidence yet, so claims here are graph-derived. structural

Dependency radial

What this concept builds on (left) and what it makes possible (right) — derived from dependency and causal relations.

Turing machineComputational ComplexityComputability◀ builds onenables ▶

What builds on this

1 concept build on this directly, 1 in total, across 1 discipline.

Theory of Computation

Structural downstream reach along dependency edges — not a claim of historical necessity.

Seen through each discipline

How this concept sits in each of its fields — derived from its real connections in the graph, not asserted.

Concepts that look related but are not yet connected here — candidates for a connection to reason about, not established links.

The scientific picture
  • Connects 5 other ideas across 2 disciplines.
  • Most of its connections are of the “Kind & structure” kind.

Derived from the graph’s real structure — observations, not a score.

Sources