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

add_assoc'

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)

 154theorem add_assoc' (x y z : LogicReal) : (x + y) + z = x + (y + z) := by

proof body

Term-mode proof.

 155  rw [eq_iff_toReal_eq]
 156  simp
 157  ring
 158

used by (2)

From the project-wide theorem graph. These declarations reference this one in their body.

depends on (4)

Lean names referenced from this declaration's body.