Example image of eyePlorer eyePlorer map for 'First principle': Philosophy Axiom Mathematics Formal system Proposition Syllogism Euclid Euclid's Elements Aristotle Tautology Metaphysics (Aristotle) A priori and a posteriori Foundationalism Rationalism René Descartes Cartesian doubt A priori Ab initio Fitting Model (physical) Physics Ab initio quantum chemistry methods Electron configuration Schrödinger equation Fiber simulation Philosophical language Synderesis 1860s in sociology Intelligibility (philosophy) Social Thermodynamics Theory Atomistix ToolKit Sum rule in differentiation System identification Constitutive equation Malthusian growth model The Road to Reality: A Complete Guide to the Laws of the Universe Prima facie Ad fontes Crash simulation Friction Noesis Posterior Analytics Empirical Opticks Enumerated powers Antecedent moisture John Farthing The Language Instinct Dialectic Dot gain