pith. machine review for the scientific record. sign in
theorem proved term proof

not_squarefree_eighteen

show as:
view Lean formalization →

No prose has been written for this declaration yet. The Lean source and graph data below render without it.

generate prose now

formal statement (Lean)

1157theorem not_squarefree_eighteen : ¬Squarefree 18 := by native_decide

proof body

Term-mode proof.

1158
1159/-- 20 is NOT squarefree (4 | 20). -/

depends on (4)

Lean names referenced from this declaration's body.