Formal Sciences
Mathematics
Number Theory
ElementScope CategorySub-ItemDefinitionElementary Number Theory
1. Domain1.1 Scope of the DomainBoundariesThe range of phenomena the science includes and excludes.Studies integers using classical arithmetic methods: primes, divisibility, modular arithmetic, congruences, arithmetic functions, Diophantine equations. Excludes analytic, algebraic, or geometric number theory unless tools reduce to elementary methods.
ScaleThe spatial, temporal, or organizational level at which the science operates (e.g., quantum, cellular, social, cosmic).Operates at the discrete, integer-valued scale: divisibility structure, modular reduction, prime factorization, residue classes, integer sequences, basic Diophantine solutions.
1.2 Ontological CommitmentsEntitiesThe kinds of things assumed to exist within the domain (particles, organisms, agents, fields, etc.).Integers, primes, composite numbers, divisors, residues, congruence classes, arithmetic functions (φ, μ, τ, σ), integer sequences, Diophantine solutions.
PropertiesThe fundamental attributes these entities possess (mass, charge, genotype, preference, etc.).Divisibility, primality, gcd/lcm structure, modular equivalence, multiplicative structure, order mod n, residue behavior, parity, factorization uniqueness.
CategoriesThe basic ontological types used to classify domain elements (substances, processes, relations, structures).Prime/composite numbers, congruence classes, multiplicative functions, arithmetic progressions, Diophantine types, residue systems.
1.3 State-VariablesVariablesThe measurable or definable properties that describe system conditions.Integer values, modulus values, residues, gcd/lcm values, arithmetic-function outputs, exponents in factorization, congruence parameters, Diophantine coefficients.
ParameterizationHow variables encode and represent the system’s state.Encoded by base modulus, prime-power decompositions, congruence parameters, divisor structure, arithmetic-function values, Diophantine parameter sets.
1.4 Admissible IdealizationsSimplificationsConceptual reductions used to make the domain tractable (point masses, rational agents, perfect gases).Assuming unique factorization in ℤ; assuming small moduli for computation; treating primes as “atomic units”; ignoring analytic distribution of primes; restricting Diophantine equations to manageable forms.
Validity ConditionsThe limits and contexts in which idealizations hold or break down.Breakdown in non-UFD rings; limitations in detecting large prime factors; failure of simple modular tools for higher Diophantine problems; difficulty with huge moduli or computationally hard factorizations.
1.5 Domain AssumptionsStructural AssumptionsBackground ontological stances such as determinism, continuity, randomness, discreteness.Assumes classical axioms of arithmetic; uniqueness of prime factorization; predictable modular behavior; well-defined arithmetic functions; existence of solutions governed by integer structure.
Implicit CommitmentsUnstated but necessary assumptions that shape the field’s conceptual structure.Assumes integers carry enough structure for classification; congruence relations behave uniformly; modular equivalence preserves arithmetic behavior; prime-factorization structure underlies all arithmetic.
1.6 Internal Coherence RequirementsConsistencyThe demand that domain concepts do not contradict one another.Modular arithmetic must agree with integer arithmetic; arithmetic functions must respect multiplicativity; divisibility rules must align with factorization; congruence properties must remain invariant.
CompatibilityThe requirement that entities, variables, and assumptions fit together into a unified descriptive framework.Requires alignment between gcd/lcm structure, modular relations, factorization, arithmetic functions, and Diophantine solvability; all must integrate into a coherent integer-based framework.
2. Evidence Layer2.1 Observable PhenomenaObservablesThe aspects of the domain that can produce detectable signals accessible to measurement.Prime occurrence, divisibility patterns, modular residues, parity behavior, periodicity in congruences, factorization structure, arithmetic-function behavior (φ, μ, σ, τ), basic Diophantine solvability.
Detection LimitsThe boundaries of what can be resolved or sensed by current instruments or methods.Cannot detect analytic distribution of primes; sequences may hide deep structure; modular arithmetic cannot reveal hidden factorization; large-number behavior obscured by computational limits; undecidable Diophantine problems.
2.2 Measurement SystemsUnitsStandardized quantifications (meters, seconds, volts, decibels, dollars, etc.) necessary for consistent comparison.Integer size, modulus value, prime factor exponents, gcd/lcm values, residue classes, arithmetic-function outputs, Diophantine parameter counts.
InstrumentsDevices and tools (microscopes, spectrometers, sensors, surveys, detectors) used to produce measurements.Euclidean algorithm, modular arithmetic tools, divisibility tests, sieve methods (elementary forms), arithmetic-function computation, basic Diophantine techniques, prime-finding algorithms.
2.3 Operational DefinitionsDefinitionsTerms defined by specific measurement procedures, ensuring empirical clarity.Divisibility, gcd/lcm, primes, congruence, residue class, multiplicative functions, modular inverse, Diophantine equation, Euler’s totient function, Möbius function.
ProceduresThe explicit steps required to perform a measurement in a reproducible way.Computing gcd/lcm; performing modular reduction; solving congruences; computing arithmetic functions; doing prime factorization (for small integers); constructing solutions to simple Diophantine equations.
2.4 Data AcquisitionProtocolsFormal processes for gathering data under controlled or standardized conditions.Generating integer sequences; computing modular tables; constructing multiplication/addition tables mod n; collecting divisors; generating factorizations; testing Diophantine forms against sample values.
SamplingRules determining which subset of the domain is measured and how representative it is.Sampling integers from intervals; selecting moduli; sampling residue classes; sampling primes; sampling arithmetic-function values; sampling simple Diophantine solutions.
2.5 Data Character & FormatData TypesThe form raw evidence takes (time series, spectra, images, counts, qualitative records).Integer lists, modular tables, divisor sets, factorization trees, arithmetic-function tables, residue-system listings, sample Diophantine-solution sets.
ResolutionThe granularity or precision with which data is captured.Resolution depends on modulus size, integer range, factorization completeness, precision of arithmetic-function tables, and granularity of integer sampling.
2.6 Reliability & CalibrationCalibrationAdjustment procedures ensuring instruments produce accurate results.Verifying gcd computations; cross-checking modular reductions; checking arithmetic-function consistency; validating factorization results; confirming congruence solutions.
Error CharacterizationIdentification and quantification of noise, uncertainty, bias, and measurement error.Computational overflow; incorrect gcd/lcm; modular-reduction mistakes; misfactorizations; parity errors; miscomputed arithmetic functions; false positive/negative Diophantine solutions.
3. Structural Layer3.1 Patterns & RegularitiesLaws / RelationsStable, repeatable patterns governing how observables behave across conditions.Divisibility laws, modular-arithmetic relations, congruence behavior, prime-distribution local patterns, multiplicative-function laws, recurrence relations in integer sequences, Chinese Remainder patterns.
InvariantsQuantities or properties that remain constant under transformations (symmetries, conservation laws).gcd, lcm, residue class, parity, multiplicativity (for μ, φ, σ, τ), order mod n, quadratic residues, invariant Diophantine structures (e.g., invariant under congruence substitutions).
3.2 Causal ArchitectureMechanismsUnderlying processes or structures that produce the observed regularities.Euclidean algorithm driving gcd structure; modular reduction shaping congruence classes; factorization mechanisms determining arithmetic function outputs; Diophantine substitution patterns determining solvability.
PathwaysOrganized sequences of interactions forming a causal chain or network.gcd reduction pathways; prime-factorization chains; modular-lifting pathways; descent arguments in Diophantine equations; iterative congruence solving; divisor-chain pathways.
3.3 Theoretical VocabularyConceptsCore terms that encode the domain’s structure (force, gene, equilibrium, field).Prime, composite, gcd, lcm, congruence, residue, modular inverse, Euler’s φ, Möbius μ, divisor function σ, quadratic residue, Diophantine equation, unit mod n.
ClassificationsTaxonomies, categories, or typologies that organize entities and relations.Primes vs composites; residue classes mod n; multiplicative vs non-multiplicative functions; solvable vs unsolvable congruences; linear vs quadratic vs higher Diophantine forms; primitive roots vs nonexistence.
3.4 Formal RepresentationsEquationsMathematical constructs expressing laws, relations, or mechanisms.Congruence equations; gcd/lcm identities; Euler’s theorem; Fermat’s little theorem; Chinese Remainder isomorphisms; Pell-type equations; recurrence equations; parity identities.
ModelsStructured representations—mathematical, computational, or conceptual—used to predict and explain phenomena.Modular-arithmetic models; divisor-lattice models; recurrence-sequence models; Diophantine-solution sets; residue-system diagrams; prime-factorization trees.
3.5 Idealized StructuresSimplified ModelsPurposeful abstractions that capture essential dynamics while omitting irrelevant detail.Integers treated as atomic factorization units; simple congruence classes; prime-power moduli; reduced divisor lattices; idealized Diophantine forms (linear or Pell-type).
Limit ConditionsRegimes where specific models or approximations hold (classical vs. quantum, linear vs. nonlinear).Failures in non-unique factorization domains; Diophantine undecidability; computational hardness of factoring; breakdown of simple congruence techniques for higher-degree equations; limits of primality testing.
3.6 Integrative FrameworksUnifying TheoriesHigher-order structures that connect disparate laws or mechanisms under a coherent whole.Modular arithmetic as a unifier; factorization + multiplicative functions; Diophantine frameworks; residue theory; inversion formulas (Möbius inversion); elementary group-theoretic structure in ℤ/nℤ.
Interdisciplinary LinksPoints where the theory connects to adjacent sciences or larger explanatory systems.Links to algebra (rings, groups), cryptography (modular arithmetic, RSA), combinatorics (integer partitions), coding theory (residues), dynamical systems (recurrence sequences), and logic (Diophantine decidability).
4. Method Layer4.1 Inquiry DesignExperimental DesignStructured plans for manipulating variables to test causal claims.Varying congruence conditions, modifying moduli, altering factorization inputs, adjusting Diophantine parameters, and manipulating arithmetic functions to test arithmetic behavior under controlled integer changes.
Observational DesignSystematic approaches for gathering non-manipulated data (surveys, field studies, natural experiments).Observing natural integer behavior: monitoring primality patterns, tracking modular residues, examining divisibility trends, observing arithmetic-function fluctuations, studying Diophantine solvability without altering inputs.
4.2 Testing & ValidationHypothesis TestingProcedures for evaluating whether evidence supports or contradicts specific claims.Testing congruences; verifying gcd/lcm identities; checking multiplicativity of arithmetic functions; validating Diophantine solutions; testing primality; verifying modular inverses and cyclic-group orders.
ReplicationThe requirement that results be independently reproducible under similar conditions.Recomputing gcd/lcm; repeating congruence checks with alternative moduli; reproducing primality tests; re-evaluating arithmetic-function values; rediscovering Diophantine solutions under varied samples.
4.3 Inference & EvaluationStatistical InferenceRules for drawing conclusions from noisy or incomplete data.Logical analogues: analyzing residue frequency distributions; comparing arithmetic-function growth; evaluating divisibility-pattern stability; assessing Diophantine solvability trends; comparing factorization depths.
Model ComparisonCriteria (fit, simplicity, predictive accuracy, robustness) used to evaluate competing models.Comparing integer behaviors under different moduli; comparing factorization patterns; evaluating competing Diophantine formulations; comparing residue-class distributions; assessing efficiency of arithmetic algorithms.
4.4 Error ManagementError AnalysisIdentification and quantification of random and systematic errors.Miscomputed gcd/lcm; incorrect modular reductions; errors in primality checks; incorrect factorization; mis-evaluated arithmetic functions; false Diophantine solutions; integer overflow or precision errors.
Bias ControlMethods for minimizing subjective, instrumental, or procedural biases.Avoiding biased integer sampling; preventing reliance on small moduli only; avoiding selective factorization cases; ensuring random or representative sampling for Diophantine tests; preventing algorithm-dependent distortions.
4.5 Adjudication & RevisionPeer ScrutinyCollective evaluation of claims through critique, review, and debate.Independent review of congruence proofs, factorization methods, arithmetic-function identities, and Diophantine arguments; verification of primality and modular-arithmetic claims.
Theory RevisionProcedures for modifying, replacing, or discarding models based on new evidence.Updating methods for solving congruences; refining factorization approaches; modifying arithmetic-function definitions; revising Diophantine frameworks; adjusting integer-sampling strategies.
4.6 Integrity ConditionsTransparencyRequirements to disclose methods, data, assumptions, and limitations.Full disclosure of integer ranges, modulus choices, factorization methods, primality-testing algorithms, arithmetic-function conventions, and Diophantine-solving assumptions.
Ethical StandardsNorms ensuring responsible conduct in experimentation, data handling, and publication.Honest reporting of computational limits; no concealment of counterexamples; proper attribution of classical theorems; avoidance of overstating results derived from incomplete factorizations or unverifiable Diophantine trials.