Unifying Numerical Math and Symbolic Logic: Has Progress Been Made?

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Discussion Overview

The discussion centers around the potential unification of numerically based mathematics with symbolic logic, exploring whether any progress has been made in this area over the past twenty years. Participants consider historical perspectives, current theories, and various logical frameworks.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant recalls a conversation with a logic professor who suggested that unifying numerical mathematics with symbolic logic is impossible, prompting a search for any advancements in this field.
  • Another participant introduces fuzzy logic as a possible avenue for unification, noting its assignment of percentage values to truth, and references Gödel's incompleteness theorems as a limitation of formal systems.
  • A different participant expresses confusion over the initial query regarding unification, mentioning historical attempts to reduce mathematics to axiomatic logic and Gödel's findings that certain statements remain unprovable within any given axiomatic system.
  • There is a discussion about the nature of multi-valued logics and fuzzy logic, which allow for degrees of truth rather than a binary true-false distinction.
  • One participant suggests that the construction of real numbers from set theory may relate to the idea of reducing numerically based math to symbolic logic, although they clarify that it is not a direct reduction to symbolic logic.
  • Another participant acknowledges a previous statement about axioms and arithmetic, indicating a shared understanding of the limitations of propositional logic in this context.

Areas of Agreement / Disagreement

Participants express differing views on the feasibility of unifying numerical mathematics with symbolic logic, with some suggesting that it may be impossible while others propose alternative frameworks like fuzzy logic. The discussion remains unresolved regarding any consensus on progress in this area.

Contextual Notes

Limitations include the dependence on historical perspectives and the unresolved nature of the relationship between numerical mathematics and symbolic logic. The discussion also highlights the complexity of axiomatic systems and the implications of Gödel's theorems.

alvin51015
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In the late 1980's I asked my logic professor if there was some kind of logical and/or mathematical process which unified numerically based mathematics with true-false based symbolic logic.He told me that someone had written a lengthy book which apparently proved that it was totally impossible to do such a thing.But I keep thinking that there must be a way.So my question is whether any progress had been made in this area in the last twenty plus years.
 
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I really have no clear idea what you mean by "unified numerically based mathematics with true-false based symbolic logic". There were, in the late 19th century, attempts to reduce all forms of mathematics to an "axiom based" form of logic but Curt Goedel, in the early twentieth century showed that such a thing was impossible: given any set of axioms, there exist a statement that can neither be proved nor disproved from those axioms.

Indeed, rather than "true-false based symbolic logic", much of the recent work in logic has been the other way- "multi-valued logics" and "fuzzy logic" where statement are NOT just "true or false" but may have varying degrees of "trueness".
 
given any set of axioms, there exist a statement that can neither be proved nor disproved from those axioms.

Any set of axioms powerful enough to do arithmetic. Proposition logic is an exception, for example.

The numerically-based math reduced to symbolic logic sounds kind of like the construction of the real numbers and all that from set theory. It's not really reduced to symbolic logic, but it's reduced to sets.

As far as recent developments go, this came to mind:

http://blogs.scientificamerican.com/guest-blog/2013/10/01/voevodskys-mathematical-revolution/
 
homeomorphic said:
Any set of axioms powerful enough to do arithmetic. Proposition logic is an exception, for example.
Yes, I should have said that.
 

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