History [of concept of mathematics]
[History of] models of mathematics
Implementation [of proof example]
Substitution strategies [in proofs]
One-way transformations [as axioms]
Reducing axiom [system] details
[Mathematical] proofs in practice
Properties [of example multiway systems]
Truth and falsity [in formal systems]
Properties [of example multiway systems]
Essential incompleteness [in axiom systems]
[Universality of] predicate logic
[Universality of] algebraic axioms
Universal Diophantine equation
Statements in Peano arithmetic
[Examples of] unprovable statements
Encodings of arithmetic [by different operations]
Properties [of Diophantine equations]
Large solutions [to Diophantine equations]
Nearby powers [and integer equations]
Unsolved problems [in number theory]
More powerful axioms [for mathematics]
[Theorems about] practical programs
Rules [for multiway systems examples]
Consistency [in axiom systems]
Properties [of example multiway systems]
[Unprovable statements in] reduced arithmetic
Generators and relations [and axiom systems]
Comparison to multiway systems
Implementation [of operators from axioms]
Properties [of operators from axioms]
Algebraic systems [and operator systems]
Symbolic systems [and operator systems]
Groups and semigroups [and operator systems]
Forcing of operators [by axiom systems]
Multiway systems [and operator systems]
Properties [of logical primitives]
Notations [for logical primitives]
Theorem distributions [in standard mathematics]
Invention versus discovery in mathematics