Metamath Proof Explorer


Theorem dp2eq2i

Description: Equality theorem for the decimal expansion constructor. (Contributed by David A. Wheeler, 15-May-2015)

Ref Expression
Hypothesis dp2eq1i.1 A = B
Assertion dp2eq2i Could not format assertion : No typesetting found for |- _ C A = _ C B with typecode |-

Proof

Step Hyp Ref Expression
1 dp2eq1i.1 A = B
2 dp2eq2 Could not format ( A = B -> _ C A = _ C B ) : No typesetting found for |- ( A = B -> _ C A = _ C B ) with typecode |-
3 1 2 ax-mp Could not format _ C A = _ C B : No typesetting found for |- _ C A = _ C B with typecode |-