Skip to main content

All Questions

Filter by
Sorted by
Tagged with
6 votes
1 answer
727 views

What is the consistency strength of this theory?

Language: first-order logic Primitives: $=, S, \in $ (the first denotes identity, the second denotes “is a successor of”, and the third denotes membership relation). Axioms: those of identity ...
Zuhair Al-Johar's user avatar