Formal Sciences
Logic
Model Theory
ElementScope CategorySub-ItemDefinitionTame / O-Minimal Model Theory
1. Domain1.1 Scope of the DomainBoundariesThe range of phenomena the science includes and excludes.Studies structures whose definable sets in one variable are finite unions of points and intervals; includes o-minimality, tame geometry, definable functions, cell decomposition. Excludes pathological or wild definability such as arbitrary subsets of ℝ.
ScaleThe spatial, temporal, or organizational level at which the science operates (e.g., quantum, cellular, social, cosmic).Operates at the definability scale over ordered structures (especially expansions of (ℝ, <, +, ⋅)); concerns definable sets, functions, maps, and dimension theory.
1.2 Ontological CommitmentsEntitiesThe kinds of things assumed to exist within the domain (particles, organisms, agents, fields, etc.).O-minimal structures, definable sets, definable functions, cells, dimensions, projections, fibers, definable groups, types over parameters, Skolem functions in tame settings.
PropertiesThe fundamental attributes these entities possess (mass, charge, genotype, preference, etc.).Tameness, monotonicity, definability, stratification, cell decomposition behavior, continuity of definable functions, dimension invariants.
CategoriesThe basic ontological types used to classify domain elements (substances, processes, relations, structures).O-minimal structures, weakly o-minimal structures, expansions of real closed fields, definable manifolds, definable groups, definable equivalence classes, cell complexes.
1.3 State-VariablesVariablesThe measurable or definable properties that describe system conditions.Variable assignments, definable maps, parameters defining subsets, dimension values, cell decomposition data, stratification data.
ParameterizationHow variables encode and represent the system’s state.System state encoded via definable parameters, cell decompositions, dimension assignments, definable choices, and parameter-dependent definability.
1.4 Admissible IdealizationsSimplificationsConceptual reductions used to make the domain tractable (point masses, rational agents, perfect gases).Treat definable sets as cell complexes; assume clean decomposition; ignore analytic or measure-theoretic pathologies; idealize monotonicity and continuity properties.
Validity ConditionsThe limits and contexts in which idealizations hold or break down.Break down in non-o-minimal expansions, structures with dense independent sets, pathological definable sets, or when saturation and definable completeness fail.
1.5 Domain AssumptionsStructural AssumptionsBackground ontological stances such as determinism, continuity, randomness, discreteness.Assumes first-order logic; well-ordered underlying structures; definable completeness; existence of cell decomposition; predictable dimension theory; monotonicity of definable functions.
Implicit CommitmentsUnstated but necessary assumptions that shape the field’s conceptual structure.Assumes tameness across dimensions; definability behaves geometrically; types correspond to geometric features; definability interacts smoothly with projections and fiber structures.
1.6 Internal Coherence RequirementsConsistencyThe demand that domain concepts do not contradict one another.Requires compatibility between definability, dimension theory, monotonicity, and cell decomposition; definable sets must align with o-minimal axioms.
CompatibilityThe requirement that entities, variables, and assumptions fit together into a unified descriptive framework.Requires alignment among definable sets, maps, cell decompositions, dimensions, and order structure; definability must be preserved under projections, products, and parameter changes.
2. Evidence Layer2.1 Observable PhenomenaObservablesThe aspects of the domain that can produce detectable signals accessible to measurement.Definable sets in one variable (finite unions of points and intervals), monotonicity of definable functions, cell decomposition, definable continuity, dimension behavior.
Detection LimitsThe boundaries of what can be resolved or sensed by current instruments or methods.O-minimality prevents defining arbitrary discrete sets, fractal sets, wild oscillatory graphs, or sets of unbounded local complexity.
2.2 Measurement SystemsUnitsStandardized quantifications (meters, seconds, volts, decibels, dollars, etc.) necessary for consistent comparison.Dimensions, number of cells, sizes of definable partitions, quantifier complexity, lengths of definable chains.
InstrumentsDevices and tools (microscopes, spectrometers, sensors, surveys, detectors) used to produce measurements.Cell decomposition tools, projection maps, definable choice, monotonicity theorems, quantifier elimination in o-minimal expansions.
2.3 Operational DefinitionsDefinitionsTerms defined by specific measurement procedures, ensuring empirical clarity.Definitions of o-minimality, definable sets, cells, dimension, definable completeness, monotone/continuous definable functions.
ProceduresThe explicit steps required to perform a measurement in a reproducible way.Running cell decomposition, computing dimensions, verifying monotonicity, constructing definable stratifications, applying quantifier elimination.
2.4 Data AcquisitionProtocolsFormal processes for gathering data under controlled or standardized conditions.Constructing definable families, generating cell partitions, performing fiber analyses under projection, producing local stratifications.
SamplingRules determining which subset of the domain is measured and how representative it is.Sampling definable families over parameters, selecting representative cells, comparing definable slices by dimension, identifying generic fibers.
2.5 Data Character & FormatData TypesThe form raw evidence takes (time series, spectra, images, counts, qualitative records).Cells, definable curves/surfaces, dimensional profiles, stratifications, monotonicity intervals, projection–fiber diagrams.
ResolutionThe granularity or precision with which data is captured.Determined by fineness of cell partitions, dimensional granularity, precision of definable stratifications, expressive power of the language.
2.6 Reliability & CalibrationCalibrationAdjustment procedures ensuring instruments produce accurate results.Verifying cell decomposition correctness, confirming definable continuity, validating dimension assignments, checking monotonicity, testing o-minimality under expansions.
Error CharacterizationIdentification and quantification of noise, uncertainty, bias, and measurement error.Misassigned dimensions, incorrect cell boundaries, false monotonicity detection, definable incompleteness errors, projection/fiber misanalysis.
3. Structural Layer3.1 Patterns & RegularitiesLaws / RelationsStable, repeatable patterns governing how observables behave across conditions.Cell decomposition theorem, monotonicity theorem, finiteness of definable partitions, o-minimal dimension laws, definable continuity patterns, tame growth constraints.
InvariantsQuantities or properties that remain constant under transformations (symmetries, conservation laws).Dimension, number of cells in decomposition, definable connected components, monotonicity intervals, o-minimal rank-like invariants, invariance of definability under projections.
3.2 Causal ArchitectureMechanismsUnderlying processes or structures that produce the observed regularities.Mechanisms by which order and definability enforce tameness: cell decomposition, projection/fiber behavior, definable choice, monotone extension mechanisms, stratification processes.
PathwaysOrganized sequences of interactions forming a causal chain or network.Cell decomposition pathways, stepwise stratification building, projection–fiber analysis sequences, definable continuity pathways, inductive dimension computation sequences.
3.3 Theoretical VocabularyConceptsCore terms that encode the domain’s structure (force, gene, equilibrium, field).O-minimality, definable sets, cells, dimension, definably complete, definable continuity, monotonicity, tame functions, definable manifolds, stratifications.
ClassificationsTaxonomies, categories, or typologies that organize entities and relations.O-minimal vs. weakly o-minimal, polynomially bounded vs. non-polynomially bounded o-minimal structures, expansions of real closed fields, tame vs. wild definable behavior.
3.4 Formal RepresentationsEquationsMathematical constructs expressing laws, relations, or mechanisms.Formal statements of cell decomposition, dimension axioms, monotonicity conditions, piecewise definability rules, projection formulas, quantifier-elimination schemas.
ModelsStructured representations—mathematical, computational, or conceptual—used to predict and explain phenomena.O-minimal structures, expansions of (ℝ, <, +, ⋅), definable manifolds, tame geometric models, cell-complex models, piecewise-monotone definable function models.
3.5 Idealized StructuresSimplified ModelsPurposeful abstractions that capture essential dynamics while omitting irrelevant detail.Ideal cells (intervals × points), pure cell complexes, piecewise-linear definable sets, tame expansions with clean monotonicity, simplified geometric stratifications.
Limit ConditionsRegimes where specific models or approximations hold (classical vs. quantum, linear vs. nonlinear).Breakdown in non-o-minimal expansions, expansions adding dense independent sets, definable discontinuities, non-cell-decomposable definable sets, loss of definability under non-tame functions.
3.6 Integrative FrameworksUnifying TheoriesHigher-order structures that connect disparate laws or mechanisms under a coherent whole.O-minimality as the unifying framework for tame geometry, real algebraic geometry, semialgebraic geometry, subanalytic geometry, and definability theory in ordered structures.
Interdisciplinary LinksPoints where the theory connects to adjacent sciences or larger explanatory systems.Connections to real algebraic geometry, subanalytic geometry, differential topology, combinatorics (VC-dimension), optimization, and dynamical systems with definable trajectories.
4. Method Layer4.1 Inquiry DesignExperimental DesignStructured plans for manipulating variables to test causal claims.Manipulating definable sets, expansions of the language, or choice of parameters to test monotonicity, dimension behavior, and cell decomposition structure.
Observational DesignSystematic approaches for gathering non-manipulated data (surveys, field studies, natural experiments).Observing definable behavior in fixed structures: watching how fibers behave under projection, tracking monotonicity intervals, or monitoring dimensional stability without altering the theory.
4.2 Testing & ValidationHypothesis TestingProcedures for evaluating whether evidence supports or contradicts specific claims.Testing whether a structure is o-minimal, verifying cell decomposition existence, checking monotonicity of definable functions, validating dimension computations, testing tame behavior under expansions.
ReplicationThe requirement that results be independently reproducible under similar conditions.Re-running cell decompositions across models; reproducing dimension calculations; verifying monotonicity in definable families; replicating projection–fiber analyses with different parameter sets.
4.3 Inference & EvaluationStatistical InferenceRules for drawing conclusions from noisy or incomplete data.Logical analogues: analyzing distribution of cell counts, comparing dimensional spectra across definable families, assessing frequency of tame vs. non-tame behavior in expansions.
Model ComparisonCriteria (fit, simplicity, predictive accuracy, robustness) used to evaluate competing models.Comparing o-minimal structures by cell complexity, definability strength, projection behavior, growth rates of definable functions, dimension theory robustness, and presence/absence of quantifier elimination.
4.4 Error ManagementError AnalysisIdentification and quantification of random and systematic errors.Identifying misassigned cells, incorrect dimension values, definable discontinuities mistakenly labeled continuous, failures in cell decomposition, projection misanalysis, or erroneous conclusions from expansions.
Bias ControlMethods for minimizing subjective, instrumental, or procedural biases.Avoiding biased selection of definable samples, preventing over-enrichment of languages that trivialize tameness, ensuring neutral parameter choices in families, avoiding selective sampling of “easy” cells.
4.5 Adjudication & RevisionPeer ScrutinyCollective evaluation of claims through critique, review, and debate.Reviewing cell decomposition proofs, dimension calculations, definability claims, monotonicity arguments, and tameness proofs among experts in model theory and tame geometry.
Theory RevisionProcedures for modifying, replacing, or discarding models based on new evidence.Modifying the underlying language or structure to regain o-minimality, refining definable completeness assumptions, revising cell decomposition steps, or adjusting stratification frameworks after counterexamples.
4.6 Integrity ConditionsTransparencyRequirements to disclose methods, data, assumptions, and limitations.Full disclosure of language expansions, parameter choices, cell decomposition procedures, dimension rules, stratification methods, and all assumptions affecting tameness.
Ethical StandardsNorms ensuring responsible conduct in experimentation, data handling, and publication.Honest reporting of non-tame behavior, correct attribution of decomposition tools, avoidance of hidden definability assumptions, and accurate representation of o-minimal limits.