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- Hamilton's principle
- Hamilton's principle/Applications/Central force and the Kepler problem
- Hamilton's principle/Applications/Classical field theory
- Hamilton's principle/Applications/Continuum systems: the vibrating string
- Hamilton's principle/Applications/Fermat's principle
- Hamilton's principle/Applications/Geodesics
- Hamilton's principle/Applications/The Einstein-Hilbert action
- Hamilton's principle/Applications/The Feynman path integral
- Hamilton's principle/Applications/The brachistochrone
- Hamilton's principle/Applications/The catenary
- Hamilton's principle/Applications/The electromagnetic Lagrangian
- Hamilton's principle/Applications/The optical-mechanical analogy
- Hamilton's principle/Applications/The rigid body
- Hamilton's principle/Chronology
- Hamilton's principle/Equation index
- Hamilton's principle/Explainers/Action from the endpoints
- Hamilton's principle/Explainers/Comparing paths
- Hamilton's principle/Explainers/Constraints
- Hamilton's principle/Explainers/Electromagnetism from an action
- Hamilton's principle/Explainers/Fields
- Hamilton's principle/Explainers/Fixed length problems
- Hamilton's principle/Explainers/Free ends
- Hamilton's principle/Explainers/Gravity from an action
- Hamilton's principle/Explainers/Is it really a minimum
- Hamilton's principle/Explainers/Light and particles
- Hamilton's principle/Explainers/More than one variable
- Hamilton's principle/Explainers/Multipliers
- Hamilton's principle/Explainers/Reading a curve two ways
- Hamilton's principle/Explainers/Strong and weak
- Hamilton's principle/Explainers/Sum over histories
- Hamilton's principle/Explainers/Symmetry and conservation
- Hamilton's principle/Explainers/The Hamiltonian
- Hamilton's principle/Explainers/Two different actions
- Hamilton's principle/Explainers/Waves and rays
- Hamilton's principle/Explainers/What the Euler-Lagrange equation says
- Hamilton's principle/Explainers/When symmetry is local
- Hamilton's principle/Explainers/Where the minimum fails
- Hamilton's principle/Figure gallery
- Hamilton's principle/Glossary
- Hamilton's principle/History/Euler and the Methodus inveniendi
- Hamilton's principle/History/Feynman 1948
- Hamilton's principle/History/Hamilton 1834 and 1835
- Hamilton's principle/History/Jacobi
- Hamilton's principle/History/Lagrange and the Mecanique analytique
- Hamilton's principle/History/Least time before least action
- Hamilton's principle/History/Maupertuis and the 1744 memoir
- Hamilton's principle/History/Noether 1918
- Hamilton's principle/History/The Maupertuis-Koenig affair
- Hamilton's principle/History/d'Alembert and virtual work
- Hamilton's principle/Mathematics/Abbreviated action: Maupertuis versus Hamilton
- Hamilton's principle/Mathematics/Action as a function of its endpoints
- Hamilton's principle/Mathematics/Boundary terms and natural boundary conditions
- Hamilton's principle/Mathematics/Functionals and the space of paths
- Hamilton's principle/Mathematics/Holonomic constraints
- Hamilton's principle/Mathematics/Isoperimetric problems
- Hamilton's principle/Mathematics/Lagrange multipliers
- Hamilton's principle/Mathematics/Noether's first theorem
- Hamilton's principle/Mathematics/Noether's second theorem
- Hamilton's principle/Mathematics/Several dependent variables
- Hamilton's principle/Mathematics/Several independent variables
- Hamilton's principle/Mathematics/The Beltrami identity
- Hamilton's principle/Mathematics/The Euler-Lagrange equation
- Hamilton's principle/Mathematics/The Hamilton-Jacobi equation
- Hamilton's principle/Mathematics/The Hamiltonian and Hamilton's equations
- Hamilton's principle/Mathematics/The Jacobi condition and conjugate points
- Hamilton's principle/Mathematics/The Legendre condition
- Hamilton's principle/Mathematics/The Legendre transform
- Hamilton's principle/Mathematics/The Weierstrass excess function
- Hamilton's principle/Mathematics/The first variation
- Hamilton's principle/Mathematics/The fundamental lemma
- Hamilton's principle/Mathematics/The second variation
- Hamilton's principle/Notation
- Hamilton's principle/Sources
- Lean theorem prover
- Lean theorem prover/Applications/Machine learning and theorem proving
- Lean theorem prover/Applications/Physics in Lean
- Lean theorem prover/Applications/Principia Machina
- Lean theorem prover/Applications/Research mathematics
- Lean theorem prover/Applications/Software verification
- Lean theorem prover/Applications/Teaching with Lean
- Lean theorem prover/Applications/The Fermat's Last Theorem project
- Lean theorem prover/Applications/The equational theories project
- Lean theorem prover/Applications/The polynomial Freiman-Ruzsa conjecture
- Lean theorem prover/Bibliography
- Lean theorem prover/Chronology
- Lean theorem prover/Explainers/A library of mathematics
- Lean theorem prover/Explainers/Automation and its limits
- Lean theorem prover/Explainers/Building things from constructors
- Lean theorem prover/Explainers/Checking a proof again later
- Lean theorem prover/Explainers/Checking instead of convincing
- Lean theorem prover/Explainers/Computation inside proofs
- Lean theorem prover/Explainers/Functions that always finish
- Lean theorem prover/Explainers/Holes and goals
- Lean theorem prover/Explainers/Induction, as the machine sees it
- Lean theorem prover/Explainers/Lean and physics
- Lean theorem prover/Explainers/Programs and proofs in one language
- Lean theorem prover/Explainers/Propositions as types
- Lean theorem prover/Explainers/Stating the right thing
- Lean theorem prover/Explainers/Tactics
- Lean theorem prover/Explainers/The small trusted core
- Lean theorem prover/Explainers/Two kinds of equality
- Lean theorem prover/Explainers/Types as specifications
- Lean theorem prover/Explainers/What a proof assistant does
- Lean theorem prover/Explainers/What has to be trusted
- Lean theorem prover/Explainers/What the axioms are
- Lean theorem prover/Explainers/When Lean says no
- Lean theorem prover/Explainers/Why there is no type of all types
- Lean theorem prover/Foundations/Classical logic from choice
- Lean theorem prover/Foundations/Consistency and the metatheory
- Lean theorem prover/Foundations/Definitional equality
- Lean theorem prover/Foundations/Dependent function types
- Lean theorem prover/Foundations/Inductive types and recursors
- Lean theorem prover/Foundations/Proof irrelevance and subsingleton elimination
- Lean theorem prover/Foundations/Propositional equality
- Lean theorem prover/Foundations/Quotient types
- Lean theorem prover/Foundations/Structural and well-founded recursion
- Lean theorem prover/Foundations/Terms, types and judgments
- Lean theorem prover/Foundations/The three axioms
- Lean theorem prover/Foundations/Universes and Prop
- Lean theorem prover/Further reading
- Lean theorem prover/Glossary
- Lean theorem prover/History/Automath
- Lean theorem prover/History/LCF and the tactic idea
- Lean theorem prover/History/Lean 1 to Lean 3
- Lean theorem prover/History/Lean 4
- Lean theorem prover/History/Lean since 2023
- Lean theorem prover/History/Martin-Löf type theory
- Lean theorem prover/History/Mathlib and its community
- Lean theorem prover/History/The Calculus of Constructions
- Lean theorem prover/History/The Liquid Tensor Experiment
- Lean theorem prover/Notation
- Lean theorem prover/Sources
- Lean theorem prover/System/Decision procedures
- Lean theorem prover/System/Elaboration
- Lean theorem prover/System/Lake and Lean projects
- Lean theorem prover/System/Metaprogramming in Lean
- Lean theorem prover/System/Metavariables and unification
- Lean theorem prover/System/Monads and do-notation
- Lean theorem prover/System/Proof export and independent checkers
- Lean theorem prover/System/Syntax extension and hygienic macros
- Lean theorem prover/System/The Lean kernel
- Lean theorem prover/System/The compiler and runtime
- Lean theorem prover/System/The tactic framework
- Lean theorem prover/System/Type classes and instance resolution
- Main Page
- Noether's theorems
- Noether's theorems/Applications/Conserved quantities in point mechanics
- Noether's theorems/Applications/Continuum mechanics
- Noether's theorems/Applications/Electromagnetism and charge conservation
- Noether's theorems/Applications/General relativity and the Bianchi identity
- Noether's theorems/Applications/General relativity and the energy question
- Noether's theorems/Applications/Kelvin's circulation theorem
- Noether's theorems/Applications/Photon energy in an expanding universe
- Noether's theorems/Applications/The Runge-Lenz vector
- Noether's theorems/Applications/The conserved currents of the Standard Model
- Noether's theorems/Applications/Topological charge, which is not a Noether charge
- Noether's theorems/Applications/Variational integrators and discrete symmetry
- Noether's theorems/Applications/Yang-Mills theory
- Noether's theorems/Bibliography
- Noether's theorems/Chronology
- Noether's theorems/Explainers/A conservation law that is only wearing the costume
- Noether's theorems/Explainers/A conserved quantity Noether does not explain
- Noether's theorems/Explainers/A flowing quantity and a standing total
- Noether's theorems/Explainers/An identity hiding inside Einstein's equations
- Noether's theorems/Explainers/Counting the equations a gauge theory really has
- Noether's theorems/Explainers/Drifting centres and electric charge
- Noether's theorems/Explainers/Equations that were never independent
- Noether's theorems/Explainers/Groups of continuous motions
- Noether's theorems/Explainers/Moving the bookkeeping without changing the total
- Noether's theorems/Explainers/Nudging a path and seeing what changes
- Noether's theorems/Explainers/Reading the second theorem backwards
- Noether's theorems/Explainers/Reading the theorem backwards
- Noether's theorems/Explainers/Symmetries of a curved space
- Noether's theorems/Explainers/Symmetry and conservation, the first theorem
- Noether's theorems/Explainers/Symmetry that can differ from place to place
- Noether's theorems/Explainers/The conserved thing is the thing that does the moving
- Noether's theorems/Explainers/The second theorem, and why it is not the first
- Noether's theorems/Explainers/The symmetry behind the strong and weak forces
- Noether's theorems/Explainers/The theorem after quantum mechanics
- Noether's theorems/Explainers/The two theorems compared
- Noether's theorems/Explainers/True everywhere against true for real motions
- Noether's theorems/Explainers/Two ways a thing can stay the same
- Noether's theorems/Explainers/What a continuous symmetry is
- Noether's theorems/Explainers/What an action is
- Noether's theorems/Explainers/What happens at the edges
- Noether's theorems/Explainers/What the Standard Model conserves
- Noether's theorems/Explainers/When a symmetry does not survive
- Noether's theorems/Explainers/Where the light's energy goes
- Noether's theorems/Explainers/Why Noether needed a third symbol
- Noether's theorems/Explainers/Why energy and momentum are conserved
- Noether's theorems/Explainers/Why gravity has no local energy
- Noether's theorems/Explainers/Why speed has to come along for the ride
- Noether's theorems/Explainers/Why the moment map resists plain language
- Noether's theorems/Figure gallery
- Noether's theorems/First theorem/Centre-of-mass motion and electric charge
- Noether's theorems/First theorem/Energy, momentum and angular momentum
- Noether's theorems/First theorem/Invariance of the action, strict and up to a divergence
- Noether's theorems/First theorem/On-shell and off-shell
- Noether's theorems/First theorem/One-parameter groups and their generators
- Noether's theorems/First theorem/Prolongation to derivatives
- Noether's theorems/First theorem/The Lagrange expressions and the first variation
- Noether's theorems/First theorem/The Noether current and the Noether charge
- Noether's theorems/First theorem/The action and the variational setup
- Noether's theorems/First theorem/The boundary term
- Noether's theorems/First theorem/The converse of the first theorem
- Noether's theorems/First theorem/The first theorem stated and proved
- Noether's theorems/Further reading
- Noether's theorems/Glossary
- Noether's theorems/History/Bessel-Hagen and the first uses
- Noether's theorems/History/Gottingen and the energy problem
- Noether's theorems/History/Hilbert and Klein
- Noether's theorems/History/Noether's position and the writing of the paper
- Noether's theorems/History/The 1918 paper read in its own order
- Noether's theorems/History/The long neglect
- Noether's theorems/History/The precursors
- Noether's theorems/History/The recovery in field theory
- Noether's theorems/History/What Noether's theorem now means
- Noether's theorems/Index of symmetries
- Noether's theorems/Mathematics/Anomalies
- Noether's theorems/Mathematics/Jet space and prolongation
- Noether's theorems/Mathematics/Killing vectors and conserved quantities along geodesics
- Noether's theorems/Mathematics/Lie groups and Lie algebras
- Noether's theorems/Mathematics/Poisson brackets and the generator identity
- Noether's theorems/Mathematics/The Belinfante-Rosenfeld improvement
- Noether's theorems/Mathematics/The Ward-Takahashi identity
- Noether's theorems/Mathematics/The symplectic form of the theorem and the moment map
- Noether's theorems/Notation
- Noether's theorems/Second theorem/Fewer independent field equations than fields
- Noether's theorems/Second theorem/Groups depending on arbitrary functions
- Noether's theorems/Second theorem/Proper and improper conservation laws
- Noether's theorems/Second theorem/The Noether identities
- Noether's theorems/Second theorem/The converse of the second theorem
- Noether's theorems/Second theorem/The second theorem stated and proved
- Noether's theorems/Second theorem/The two theorems side by side
- Noether's theorems/Sources
- On Physical Lines of Force
- On Physical Lines of Force/Chronology
- On Physical Lines of Force/Explainers
- On Physical Lines of Force/Explainers/A wrong model that produced right answers
- On Physical Lines of Force/Explainers/How Maxwell found the speed of light
- On Physical Lines of Force/Explainers/Magnetism twists light
- On Physical Lines of Force/Explainers/The missing term
- On Physical Lines of Force/Explainers/The sea of spinning cells
- On Physical Lines of Force/Explainers/Two ways to measure electricity
- On Physical Lines of Force/Explainers/What came after
- On Physical Lines of Force/Explainers/What is a line of force
- On Physical Lines of Force/Explainers/What is an electric current
- On Physical Lines of Force/Explainers/Why Maxwell wanted a mechanism
- On Physical Lines of Force/Explainers/Why a changing magnet makes a current
- On Physical Lines of Force/Explainers/Why spinning makes a pull
- On Physical Lines of Force/Explainers/Why the cells had to be springy
- On Physical Lines of Force/Figures
- On Physical Lines of Force/Glossary
- On Physical Lines of Force/Index of numbered equations
- On Physical Lines of Force/Introduction
- On Physical Lines of Force/Modern derivations
- On Physical Lines of Force/Modern derivations/Ampere's law and its correction
- On Physical Lines of Force/Modern derivations/Faraday's law of induction
- On Physical Lines of Force/Modern derivations/Faraday rotation today
- On Physical Lines of Force/Modern derivations/From components to vectors
- On Physical Lines of Force/Modern derivations/Gauss's law for electricity
- On Physical Lines of Force/Modern derivations/No magnetic monopoles
- On Physical Lines of Force/Modern derivations/The Lorentz force
- On Physical Lines of Force/Modern derivations/The Maxwell stress tensor
- On Physical Lines of Force/Modern derivations/The constitutive relations
- On Physical Lines of Force/Modern derivations/The displacement current
- On Physical Lines of Force/Modern derivations/The electromagnetic wave equation
- On Physical Lines of Force/Modern derivations/The unit ratio
- On Physical Lines of Force/Modern derivations/The vector potential
- On Physical Lines of Force/Notation and concordance
- On Physical Lines of Force/Part I
- On Physical Lines of Force/Part I/Applications
- On Physical Lines of Force/Part I/Prop. I
- On Physical Lines of Force/Part I/Prop. II
- On Physical Lines of Force/Part I/Prop. III
- On Physical Lines of Force/Part I/The introductory discussion
- On Physical Lines of Force/Part II
- On Physical Lines of Force/Part II/Induced currents
- On Physical Lines of Force/Part II/Prop. IV
- On Physical Lines of Force/Part II/Prop. V
- On Physical Lines of Force/Part II/Prop. VI
- On Physical Lines of Force/Part II/Prop. VII
- On Physical Lines of Force/Part II/Prop. VIII
- On Physical Lines of Force/Part II/Prop. XI
- On Physical Lines of Force/Part II/Props. IX and X
- On Physical Lines of Force/Part II/The mechanism of idle wheels
- On Physical Lines of Force/Part III
- On Physical Lines of Force/Part III/Conduction and induction
- On Physical Lines of Force/Part III/Prop. XII
- On Physical Lines of Force/Part III/Prop. XIII
- On Physical Lines of Force/Part III/Prop. XIV
- On Physical Lines of Force/Part III/Prop. XV
- On Physical Lines of Force/Part III/Prop. XVI
- On Physical Lines of Force/Part III/Prop. XVII
- On Physical Lines of Force/Part IV
- On Physical Lines of Force/Part IV/The six results
- On Physical Lines of Force/Part IV/What became of the vortices
- On Physical Lines of Force/Part IV/Why magnetism must be rotatory
- On Physical Lines of Force/Rendering test
- On Physical Lines of Force/Sources and editorial method
- Principia Machina/Lean transition
- Principia Machina/Progress/Log
- Principia Machina/Progress/Phase 0
- Principia Machina/Progress/Phase 1
- Principia Machina/Progress/Phase 2
- Principia Machina/Progress/Phase 3
- Principia Machina/Progress/Status
- Principia Machina/Terminology
- The Principia Machina
- The Principia Machina/Agent/Bibliography
- The Principia Machina/Agent/Contract
- The Principia Machina/Agent/Falcons
- The Principia Machina/Agent/Forms
- The Principia Machina/Agent/Index
- The Principia Machina/Agent/Inputs
- The Principia Machina/Agent/Post-refusal
- The Principia Machina/Agent/Reliability
- The Principia Machina/Agent/Research toolkit
- The Principia Machina/Agent/Tools
- The Principia Machina/Agent/Top performers
- The Principia Machina/Bootstrap archive/Build chain
- The Principia Machina/Bootstrap archive/Declarations
- The Principia Machina/Build chain
- The Principia Machina/Build chain/Volume 1
- The Principia Machina/Decisions
- The Principia Machina/Declarations
- The Principia Machina/Declarations/Volume 1
- The Principia Machina/Diagrams/01 Five-layer map
- The Principia Machina/Diagrams/02 Container lifecycle
- The Principia Machina/Diagrams/03 Digest gate and recovery
- The Principia Machina/Diagrams/04 CAC check flow
- The Principia Machina/Diagrams/05 Copy-forward
- The Principia Machina/Diagrams/06 Three-zone TFK
- The Principia Machina/Diagrams/07 Strike-rule flow
- The Principia Machina/Diagrams/08 Regime and contradiction tests
- The Principia Machina/Diagrams/09 Lock and petition queue
- The Principia Machina/Diagrams/10 Landing and post-refusal
- The Principia Machina/Diagrams/11 Work-block lifecycle
- The Principia Machina/Diagrams/12 Index of record
- The Principia Machina/Diagrams/13 Canary and scorecard pipeline
- The Principia Machina/Diagrams/C1 Kernel and register
- The Principia Machina/Diagrams/C2 Recorder pages
- The Principia Machina/Diagrams/C3 Lifecycle pipeline
- The Principia Machina/Diagrams/C4 Landing pipeline
- The Principia Machina/Diagrams/C5 Certification pipeline