Metamath Proof Explorer


Theorem elfz4

Description: Membership in a finite set of sequential integers. (Contributed by NM, 21-Jul-2005) (Revised by Mario Carneiro, 28-Apr-2015)

Ref Expression
Assertion elfz4 MNKMKKNKMN

Proof

Step Hyp Ref Expression
1 elfz2 KMNMNKMKKN
2 1 biimpri MNKMKKNKMN