Non-wellfounded mereology

Template:Short description In philosophy, specifically metaphysics, mereology is the study of parthood relationships. In mathematics and formal logic, wellfoundedness prohibits $\cdots <x<\cdots <x<\cdots$ for any x.

Thus non-wellfounded mereology treats topologically circular, cyclical, repetitive, or other eventual self-containment.

More formally, non-wellfounded partial orders may exhibit $\cdots <x<\cdots <x<\cdots$ for some x whereas well-founded orders prohibit that.

See also

• Aczel's anti-foundation axiom
• Peter Aczel
• John Barwise
• Steve Awodey
• Dana Scott

External links

• Template:SEP

Template:Philosophy-stub Template:Metaphysics-stub Template:Logic-stub