Metamath Proof Explorer


Theorem endom

Description: Equinumerosity implies dominance. Theorem 15 of Suppes p. 94. (Contributed by NM, 28-May-1998)

Ref Expression
Assertion endom ( 𝐴𝐵𝐴𝐵 )

Proof

Step Hyp Ref Expression
1 enssdom ≈ ⊆ ≼
2 1 ssbri ( 𝐴𝐵𝐴𝐵 )