isabelle

isabelle

Why is this simple proof with real numbers not proven by auto (or even sledgehammer)

How to prove that a recursive function has some value

Isabelle/HOL with HOL-Z and ZETA

How to make Isabelle use basic math rules?

Unable to evaluate expressions with a reflexive transitive closure

Definition of multiplicative group of a field in Isabelle

Proving simple theorem about cases mod 10

Getting jEdit to show all schematic variable assignments

Transformation of goals by "rule"

How to realize declared types and constants in Isabelle/HOL?

Is there a way to name and refer to a assumption in Isabelle apply-scripts?

Defining a predicate; need prop=>bool

Define a type variable as either one of two options

Are there Isabelle/Isar proof strategies to prove lemmas about non-inductive definitions?

cases vs case_tac/induct vs induct_tac

How to formalize axioms in the Isabelle proff assistant?

Using `defines` with induction

How to include statement about type of the variable in the Isabelle/HOL term

Meta symbol for existential quantification in Isabelle

Fragile rule application in Isabelle

Proving basic properties of recursive "less than" definition for naturals in Isabelle

Accumulating results while using them in Isabelle/Isar

Referencing current assumptions in Isabelle

How to write expansion rules in Isabelle？

Introducing fixed representation for a quotient type in Isabelle

Isabelle/HOL error Type unification failed: Clash of types "nat" and "_ set" Type error in application: incompatible operand type

What does "case _ of _" mean in Isabelle

How to use the base case assumption when proving with 'induct' in Isabelle

How to define a function/map from one set to another (f: A -> B) in Isabelle?

How to prove the existence of inverse functions in Isabelle/HOL?

How to find the proof method chosen by the "proof" command

Isabelle "Failed to apply proof method" when working with two theory files

How to prove by case analysis on a logical condition being either true or false in Isabelle/HOL?

Isabelle termination of function on datatypes containing maps to themselves

Proving theorem in Isar with no local assumptions

Quantifying over a specific part of the sentence in Isabelle

How to resolve Isabelle termination _dom error message (avoiding recursive definition of two-argument max)?

Isabelle theory 'Variable "return" occurs on right hand side only'

Can Isabelle lemma be used for stating fact about definition?

Focusing on a subgoal

How to make multiline comments for Isabelle theory?

How to skip (problematic) Isabelle sessions in AFP?

What does the "note" command do in Isabelle and when is it necessary?

How to register MMT as Isabelle component on Windows 10 (to call isabelle mmt_build)?

How to show the definition of a ML definition in Isabelle/HOL?

what's the distinction between `shows` and `obtains` in Isabelle Isar?

How to prove an element does not belong to an inductive_set

request clarification on appearance of apparent real coercion in theory involving natural numbers in Isabelle theory

How to let option expressions simplfy in Isabelle?

What is the main symbol in Isabelle's set operator (‘) :: ('a => 'b) => 'a set => 'b set?

How to use the "THE" syntax in Isabelle/HOL?

can we use cartouches instead of quotation marks to delineate inner syntax in jEdit Isabelle/HOL sessions

Why are the following trivial self-equalities needed in the Isabelle/Isar proof?

How to write isabelle iterated implications in ASCII

Why is this seemingly incorrect proof OK with Isabelle?

Isabelle: Too many precedences in mixfix annotation

How to use lambda expression in Isabelle/HOL?

Local assumptions in "state" mode

How to abort a proof in Isabelle?

Simplifying if-then-else in summations or products

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