Metamath Proof Explorer


Theorem eldisjim2

Description: Alternate form of eldisjim . (Contributed by Peter Mazsa, 30-Dec-2024)

Ref Expression
Assertion eldisjim2 ElDisjAEqvRelA

Proof

Step Hyp Ref Expression
1 disjim DisjE-1AEqvRelE-1A
2 df-eldisj ElDisjADisjE-1A
3 df-coels A=E-1A
4 3 eqvreleqi EqvRelAEqvRelE-1A
5 1 2 4 3imtr4i ElDisjAEqvRelA