Metamath Proof Explorer


Theorem divsclwd

Description: Weak division closure law. (Contributed by Scott Fenton, 12-Mar-2025)

Ref Expression
Hypotheses divsclwd.1 φANo
divsclwd.2 φBNo
divsclwd.3 No typesetting found for |- ( ph -> B =/= 0s ) with typecode |-
divsclwd.4 No typesetting found for |- ( ph -> E. x e. No ( B x.s x ) = 1s ) with typecode |-
Assertion divsclwd Could not format assertion : No typesetting found for |- ( ph -> ( A /su B ) e. No ) with typecode |-

Proof

Step Hyp Ref Expression
1 divsclwd.1 φANo
2 divsclwd.2 φBNo
3 divsclwd.3 Could not format ( ph -> B =/= 0s ) : No typesetting found for |- ( ph -> B =/= 0s ) with typecode |-
4 divsclwd.4 Could not format ( ph -> E. x e. No ( B x.s x ) = 1s ) : No typesetting found for |- ( ph -> E. x e. No ( B x.s x ) = 1s ) with typecode |-
5 divsclw Could not format ( ( ( A e. No /\ B e. No /\ B =/= 0s ) /\ E. x e. No ( B x.s x ) = 1s ) -> ( A /su B ) e. No ) : No typesetting found for |- ( ( ( A e. No /\ B e. No /\ B =/= 0s ) /\ E. x e. No ( B x.s x ) = 1s ) -> ( A /su B ) e. No ) with typecode |-
6 1 2 3 4 5 syl31anc Could not format ( ph -> ( A /su B ) e. No ) : No typesetting found for |- ( ph -> ( A /su B ) e. No ) with typecode |-