Proof step

Ore-algebra identity of two definitions

All-n equality of two definitions

Concludes
shift_x_plus_one of veronese_section_2_1 of Triangle read by rows: T(n,k) is the number of ternary words of length n having k levels (n >= 1, 0 <= k <= n-1). A…
Premises
none: a direct theorem check
Theorem
polytool ?
Checked
polytool replayed · Lean not attempted
Technical details
Step id
e-1fce019b08957dec · JSON
Operation
All-n equality of two definitions
{
  "operation": "definition_equality"
}
Claims
Certificate
definition_equality, SHA-256 8e7ed4bcb54da0a642a9c5c4bf5fed588957d7b597cb58240f0bbdbaa0ba92be, 10,493 bytes (2,925 compressed); download
polytool replayed the certificate when the step was written.