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Source-pinned research

Research proof index

Search theorem names, mathematical ideas, modules, topics, projects, and role-labelled researchers. Open a result for its complete indexed Lean declaration and source record.

This index contains 2,569 research declarations. Search 10,000 more complete Mathlib declarations.

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Showing 463 to 468 of 2,569 results.

Project-declaredLean 4.32.0

Acceleration eq of equation Of Motion

ClassicalMechanics.DampedHarmonicOscillator.acceleration_eq_of_equationOfMotion

Mathematical statement

Solving the equation of motion for the acceleration: along a solution the second derivative is -(k/m) x - (γ/m) ẋ.

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

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Project-declaredLean 4.32.0

Equation Of Motion unique

ClassicalMechanics.DampedHarmonicOscillator.equationOfMotion_unique

Mathematical statement

Any two smooth solutions of the damped equation of motion with the same initial position and velocity are equal.

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

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Project-declaredLean 4.32.0

Grad Lagrangian eq force

ClassicalMechanics.DampedHarmonicOscillator.gradLagrangian_eq_force

Mathematical statement

The variational gradient of the Caldirola–Kanai action is the exponential factor times the difference of the force and mass times acceleration appearing in Newton's second law.

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

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Project-declaredLean 4.32.0

To Undamped equation Of Motion

ClassicalMechanics.DampedHarmonicOscillator.toUndamped_equationOfMotion

Mathematical statement

When γ = 0, the damped equation of motion is equivalent to the equation of motion for the corresponding undamped harmonic oscillator.

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

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Project-declaredLean 4.32.0

Trajectory equation Of Motion of critically Damped

ClassicalMechanics.DampedHarmonicOscillator.trajectory_equationOfMotion_of_criticallyDamped

Mathematical statement

In the critically damped regime, the selected trajectory satisfies the damped equation of motion.

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

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Project-declaredLean 4.32.0

Trajectory equation Of Motion of overdamped

ClassicalMechanics.DampedHarmonicOscillator.trajectory_equationOfMotion_of_overdamped

Mathematical statement

In the overdamped regime, the selected trajectory satisfies the damped equation of motion.

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

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