Theorem zs12ex

Description: The class of dyadic fractions is a set. (Contributed by Scott Fenton, 7-Aug-2025)

	Ref	Expression
Assertion	zs12ex	Could not format assertion : No typesetting found for |- ZZ_s[1/2] e. _V with typecode |-

Proof

Step	Hyp	Ref	Expression
1		df-zs12	Could not format ZZ_s[1/2] = { x | E. y e. ZZ_s E. z e. NN0_s x = ( y /su ( 2s ^su z ) ) } : No typesetting found for |- ZZ_s[1/2] = { x | E. y e. ZZ_s E. z e. NN0_s x = ( y /su ( 2s ^su z ) ) } with typecode |-
2		zsex	$$⊢{\mathbb{Z}}_s\in \mathrm{V}$$
3		n0sex	$$⊢{\mathbb{N}}_{\mathrm{0s}}\in \mathrm{V}$$
4	2 3	ab2rexex	Could not format { x | E. y e. ZZ_s E. z e. NN0_s x = ( y /su ( 2s ^su z ) ) } e. _V : No typesetting found for |- { x | E. y e. ZZ_s E. z e. NN0_s x = ( y /su ( 2s ^su z ) ) } e. _V with typecode |-
5	1 4	eqeltri	Could not format ZZ_s[1/2] e. _V : No typesetting found for |- ZZ_s[1/2] e. _V with typecode |-