Theorem dec0u

Description: Add a zero in the units place. (Contributed by Mario Carneiro, 17-Apr-2015) (Revised by AV, 6-Sep-2021)

	Ref	Expression
Hypothesis	dec0u.1	$$⊢A\in {\mathbb{N}}_0$$
Assertion	dec0u	Could not format assertion : No typesetting found for |- ( ; 1 0 x. A ) = ; A 0 with typecode |-

Proof

Step	Hyp	Ref	Expression
1		dec0u.1	$$⊢A\in {\mathbb{N}}_0$$
2		10nn0	$$⊢10\in {\mathbb{N}}_0$$
3	2 1	num0u	$$⊢10A=10A+0$$
4		dfdec10	Could not format ; A 0 = ( ( ; 1 0 x. A ) + 0 ) : No typesetting found for |- ; A 0 = ( ( ; 1 0 x. A ) + 0 ) with typecode |-
5	3 4	eqtr4i	Could not format ( ; 1 0 x. A ) = ; A 0 : No typesetting found for |- ( ; 1 0 x. A ) = ; A 0 with typecode |-