Source-pinned research

Research proof index

Search theorem names, mathematical ideas, modules, topics, projects, and role-labelled researchers. Open a result for its complete indexed Lean declaration and source record.

This index contains 1 research declarations. Search 10,000 more complete Mathlib declarations.

1 topic
Project-declaredLean 4.21.0-rc3

Codom Eq Dom iff

Rel.codomEqDom_iff'

Plain-language statement

An elementary description of the property CodomEqDom.

set theoryconsistencyfoundations

Source project: Con(NF)

Person-level attribution pending.

View proof record