Theorem dec0h

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

	Ref	Expression
Hypothesis	dec0u.1	$$⊢A\in {\mathbb{N}}_0$$
Assertion	dec0h	Could not format assertion : No typesetting found for |- A = ; 0 A 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	num0h	$$⊢A=10\cdot 0+A$$
4		dfdec10	Could not format ; 0 A = ( ( ; 1 0 x. 0 ) + A ) : No typesetting found for |- ; 0 A = ( ( ; 1 0 x. 0 ) + A ) with typecode |-
5	3 4	eqtr4i	Could not format A = ; 0 A : No typesetting found for |- A = ; 0 A with typecode |-