All Questions
Tagged with symbolic-logic formalisation
6
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How would demi-conditionals work?
Let π = an actuality operator and ββ be demi-if. Which, if any, of the following conversions would go through?
πA ββ πB = βπA β βπB
πA ββ πB = βπA β πB
πA ββ πB = πA β βπB
πA ββ πB = βοΏ½...
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How do we arrive at stronger theories in mathematics/logic?
A reasonable aim of formal mathematics/logic is to build systems which can "interpret" many things. As an example, ZFC can interpret a number of things. Incompleteness Theorems provide us ...
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What is (β!e) in Davidson 1967?
Davidson proposes a causal law for singular event causation. Here is one example of a backward-looking part of such a law (changed slightly for clarity and to avoid copyright infringement):
(e)(u)((...
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Classical logic, symbolic logic, higher-order logic, First-order logic? Learning from scratch
I'd like to ask you a question about logic.
I study philosophy in a Spanish Christian university. In the first year, we study logic but it's the classical one, following Aristotle's Organon, the ...
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Need help translating a formal definition into FOL
I need help formally translating the following definition into FOL: "a property F is essential to an object x if and only if x could not have been the object it is without possessing the property F."
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Can a true statement also imply the opposite of itself?
It's unlikely that there could be a thesis that also is its own antithesis. Similarly, a formula usually isn't the "opposite" of itself if we use well-defined terminology.
Somehow I have a notion ...
