bˌʌt ɪn ˌɛni ɛkstˈɛnsɪvfˈɔːɹm tɹˈɛmblɪŋ hˈænd pˈɜːfɛkt ˌiːkwɪlˈɪbɹiəm, æt lˈiːst wˈʌn ʌvðə plˈeɪɚz bᵻlˈiːvz ðˈæt
But in any extensive-form trembling hand perfect equilibrium, at least one of the players believes that