Proof theory | Theorems in the foundations of mathematics
The cut-elimination theorem (or Gentzen's Hauptsatz) is the central result establishing the significance of the sequent calculus. It was originally proved by Gerhard Gentzen in his landmark 1934 paper "Investigations in Logical Deduction" for the systems LJ and LK formalising intuitionistic and classical logic respectively. The cut-elimination theorem states that any judgement that possesses a proof in the sequent calculus making use of the cut rule also possesses a cut-free proof, that is, a proof that does not make use of the cut rule. (Wikipedia).
Solve a System of Equations Using Elimination
👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves making the coefficient of one of the variables to be e
From playlist Solve a System of Equations Using Elimination | Hard
Graphing a System of Equations by Eliminating the Fractions
👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves making the coefficient of one of the variables to be e
From playlist Solve a System of Equations Using Elimination | Hard
Using Multipliers to Solve a System of Equations Using Elimination
👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves making the coefficient of one of the variables to be e
From playlist Solve a System of Equations Using Elimination | Hard
Will Troiani - Proofs as permutations (Geometry of Interaction 0)
In the third of Will's talks on linear logic and proof nets, he introduces cut-elimination for multiplicative proof nets and shows how to associate permutations to a proof-net and its normal form, with the two permutations related by an interesting identity that is the starting point for G
From playlist Computation, Geometry, Logic seminar
Using Two Multipliers to Solve a System of Equations with Elimination
👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves making the coefficient of one of the variables to be e
From playlist Solve a System of Equations Using Elimination | Hard
Toward an imaginary Ax-Kochen-Ershov principle - S. Rideau - Workshop 2 - CEB T1 2018
Silvain Rideau (CNRS – Université Paris Diderot) / 09.03.2018 Toward an imaginary Ax-Kochen-Ershov principle. All imaginaries that have been classified in Henselian fields (possibly with operators) have been shown to be geometric in the sense of Haskell-HrushovskiMacpherson. In general,
From playlist 2018 - T1 - Model Theory, Combinatorics and Valued fields
How to Solve a System by Using Two Multipliers for Elimination
👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves making the coefficient of one of the variables to be e
From playlist Solve a System of Equations Using Elimination | Hard
MAG - Lecture 9 - The Elimination Theorem
metauni Algebraic Geometry (MAG) is a first course in algebraic geometry, in Roblox. In Lecture 9 we discuss the Elimination Theorem and give some examples of using it to solve systems of polynomial equations. The webpage for MAG is https://metauni.org/mag/. This video was recorded in Th
From playlist MAG
Nonlinear algebra, Lecture 3: "Elimination and Implicitization", by Bernd Sturmfels
This is the third lecture in the IMPRS Ringvorlesung, the advanced graduate course at the Max Planck Institute for Mathematics in the Sciences.
From playlist IMPRS Ringvorlesung - Introduction to Nonlinear Algebra
MAG - Lecture 8 - Buchberger's algorithm and Elimination Theory Part 1
metauni Algebraic Geometry (MAG) is a first course in algebraic geometry, in Roblox. In Lecture 8 we give the Buchberger algorithm for constructing Grobner bases, and begin elimination theory. The webpage for MAG is https://metauni.org/mag/. This video was recorded in The Rising Sea (htt
From playlist MAG
Shadows of Computation - Lecture 1 - Making subtle ideas apparent
Welcome to Shadows of Computation, an online course taught by Will Troiani and Billy Snikkers, covering the foundations of category theory and how it is used by computer scientists to abstract computing systems to reveal their intrinsic mathematical properties. In the first lecture Will in
From playlist Shadows of Computation
Solve a System of Linear Equations Using Elimination
👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves making the coefficient of one of the variables to be e
From playlist Solve a System of Equations Using Elimination | Hard
Zlil Sela - Envelopes and equivalence relations in a free group
Zlil Sela (Hebrew University of Jerusalem, Israel) We study and classify all the definable equivalence relations in a free (and a torsion-free hyperbolic) group. To do that we associate a Diophantine set with every definable set, that contains the definable set, and its generic points are
From playlist T1-2014 : Random walks and asymptopic geometry of groups.
Gilles Dowek : La difficile explication des résultats des calculs : des preuves automatiques à ...
Recording during the thematic meeting : "Algorithm and Programming" the May 2, 2017 at the Centre International de Rencontres Mathématiques (Marseille, France) Filmmaker: Guillaume Hennenfent Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathemat
From playlist Logic and Foundations
Pushing back the barrier of imperfection - F-V. Kuhlmann - Workshop 2 - CEB T1 2018
Franz-Viktor Kuhlmann (Szczecin) / 06.03.2018 The word “imperfection” in our title not only refers to fields that are not perfect, but also to the defect of valued field extensions. The latter is not necessarily directly connected with imperfect fields but may always appear when at least
From playlist 2018 - T1 - Model Theory, Combinatorics and Valued fields
How to Solve a System of Equations Using Elimination with Fractions
👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves making the coefficient of one of the variables to be e
From playlist Solve a System of Equations Using Elimination | Hard
Using two multipliers when solving a system of equations using the addition method
👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves making the coefficient of one of the variables to be e
From playlist Solve a System of Equations Using Elimination | Hard
How to Use Elimination to Solve a System of Equations
👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves making the coefficient of one of the variables to be e
From playlist Solve a System of Equations Using Elimination | Hard
Solving a system of equations with infinite many solutions
👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves making the coefficient of one of the variables to be e
From playlist Solve a System of Equations Using Elimination | Medium
Stepan Kuznetsov: Relational models for the Lambek calculus with intersection and unit
HYBRID EVENT Recorded during the meeting "19th International Conference on Relational and Algebraic Methods in Computer Science" the November 5, 2021 by the Centre International de Rencontres Mathématiques (Marseille, France) Filmmaker: Guillaume Hennenfent Find this video and other t
From playlist Logic and Foundations