theorem proved term proof

`totient_three`

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

formal statement (Lean)

 469theorem totient_three : totient 3 = 2 := by

Term-mode proof.

 470  native_decide
 471
 472/-- φ(4) = 2. -/

Lean names referenced from this declaration's body.

totient in IndisputableMonolith.NumberTheory.Primes.ArithmeticFunctions decl_use