Metamath Proof Explorer


Theorem rerecne0d

Description: The reciprocal of a nonzero number is nonzero. (Contributed by SN, 4-Apr-2026)

Ref Expression
Hypotheses sn-rereccld.a φ A
sn-rereccld.z φ A 0
Assertion rerecne0d Could not format assertion : No typesetting found for |- ( ph -> ( 1 /R A ) =/= 0 ) with typecode |-

Proof

Step Hyp Ref Expression
1 sn-rereccld.a φ A
2 sn-rereccld.z φ A 0
3 ax-1ne0 1 0
4 1red φ 1
5 4 1 2 redivne0bd Could not format ( ph -> ( 1 =/= 0 <-> ( 1 /R A ) =/= 0 ) ) : No typesetting found for |- ( ph -> ( 1 =/= 0 <-> ( 1 /R A ) =/= 0 ) ) with typecode |-
6 3 5 mpbii Could not format ( ph -> ( 1 /R A ) =/= 0 ) : No typesetting found for |- ( ph -> ( 1 /R A ) =/= 0 ) with typecode |-