let IAlph, OAlph be non empty set ; for tfsm being non empty Mealy-FSM of IAlph,OAlph
for qa being State of tfsm
for k being Nat holds k -equivalent qa,qa
let tfsm be non empty Mealy-FSM of IAlph,OAlph; for qa being State of tfsm
for k being Nat holds k -equivalent qa,qa
let qa be State of tfsm; for k being Nat holds k -equivalent qa,qa
let k be Nat; k -equivalent qa,qa
let w be FinSequence of IAlph; FSM_1:def 11 ( len w <= k implies (qa,w) -response = (qa,w) -response )
assume
len w <= k
; (qa,w) -response = (qa,w) -response
thus
(qa,w) -response = (qa,w) -response
; verum