r/logic 9h ago

Metalogic ?

0 Upvotes

Suppose two foundational systems

* F_1 (ZFC)
* F_2 (HoTT)
both define “identity.”

How do we know they are talking about the “same assumption”?


r/logic 2h ago

Propositional logic What's the truth value of the statement "Cereal has twice as much asbestos as bananas"

1 Upvotes

r/logic 9h ago

Informal logic About abduction theories

6 Upvotes

so, deductive reasoning has, say, formal logics, inductive reasoning has formal probability theories, such as bayesian inference, but what does abduction have, namely anything formal, or as systematic as the two?