Acknowledgments
**Introduction: The Problem of Scientific Knowledge**

Situating the problem: our essential presuppositions

The procedure followed in this analysis

The Model of the Universe in Plato's *Timaeus*

The Big Bang Model of Cosmology

Algorithmic Information Theory

Notes

**Part I: The Model of the Universe in the ***Timaeus*

The date of the composition of the *Timaeus*

The first twelve axioms of the cosmological model advanced in the *Timaeus*

Plato's theory of matter and the cosmological axioms

Plato's explanation of the complexity of sensible things

Experimental verification in Plato's time

Standards and instruments of measure in Plato's time

The numbering system in Plato's time

Experimentation in the *Timaeus*

Notes

**Part II: Contemporary Big Bang Cosmology**

A. The standard Big Bang model: short description

The "philosophical" presuppositions

The geometric axioms

Einstein's gravitation

Einstein's dynamic axioms: matter and energy in the universe

time and causality in the universe

Solving Einstein's field equations

Isotropy and homogeneity of the energy/matter content of the universe: the standard Friendmann-Robertson-Walker model

B. The relation between the model and observation

The Hubble law

Cosmic microwave background radiation

The relative abundance of light elements

Observational limits in cosmology

Problems affecting the FRW model: observations requiring additional axioms

The inflationary scenario

C. Modern theory of matter

The central role of the concept of symmetry

Notes

**Part III: What Knowledge is Conveyed by Science?**

The symbolic description of reality

Algorithmic Information Theory: some relevant aspects

The Turing machine

A definition of science

The science of the axioms in Aristotle's *Posterior Analytics*

Final conclusions

Notes

Indices