Metamath Proof Explorer


Theorem eqimsscd

Description: Equality implies inclusion, deduction version. (Contributed by SN, 15-Feb-2025)

Ref Expression
Hypothesis eqimssd.1 ( 𝜑𝐴 = 𝐵 )
Assertion eqimsscd ( 𝜑𝐵𝐴 )

Proof

Step Hyp Ref Expression
1 eqimssd.1 ( 𝜑𝐴 = 𝐵 )
2 ssid 𝐴𝐴
3 1 2 eqsstrrdi ( 𝜑𝐵𝐴 )