Here, it is immediately intuitive that any number of other antecedents ("If an animal is a deer...", "If an animal is an elephant...", "If an animal is a moose...", etc.) can give rise to the consequent ("then it has four legs"), and that it is preposterous to suppose that having four legs must imply that the animal is a dog and nothing else.
hˈɪɹ, ɪɾ ɪz ɪmˈiːdɪətli ɪntˈuːᵻtˌɪv ðæt ˌɛni nˈʌmbɚɹ ʌv ˈʌðɚɹ ˌæntɪsˈiːdənts"ɪf ɐn ˈænɪməl ɪz ɐ dˈɪɹ...", "ɪf ɐn ˈænɪməl ɪz ɐn ˈɛlɪfənt...", "ɪf ɐn ˈænɪməl ɪz ɐ mˈuːs...", ɛtsˈɛtɹə.kæn ɡˈɪv ɹˈaɪz tə ðə kˈɑːnsɪkwənt"ðˈɛn ɪt hɐz fˈoːɹ lˈɛɡz", ænd ðˌɐɾɪt ɪz pɹɪpˈɔstɚɹəs tə səpˈoʊz ðæt hˌævɪŋ fˈoːɹ lˈɛɡz mˈʌst ɪmplˈaɪ ðætðɪ ˈænɪməl ɪz ɐ dˈɑːɡ ænd nˈʌθɪŋ ˈɛls.