src/HOL/Algebra/Exponent.thy
changeset 16733 236dfafbeb63
parent 16663 13e9c402308b
child 20282 49c312eaaa11
equal deleted inserted replaced
16732:1bbe526a552c 16733:236dfafbeb63
    25 apply (auto simp add: prime_def)
    25 apply (auto simp add: prime_def)
    26 apply (erule dvdE)
    26 apply (erule dvdE)
    27 apply (case_tac "k=0", simp)
    27 apply (case_tac "k=0", simp)
    28 apply (drule_tac x = m in spec)
    28 apply (drule_tac x = m in spec)
    29 apply (drule_tac x = k in spec)
    29 apply (drule_tac x = k in spec)
    30 apply (simp add: dvd_mult_cancel1 dvd_mult_cancel2, auto)
    30 apply (simp add: dvd_mult_cancel1 dvd_mult_cancel2)
    31 done
    31 done
    32 
    32 
    33 lemma zero_less_prime_power: "prime p ==> 0 < p^a"
    33 lemma zero_less_prime_power: "prime p ==> 0 < p^a"
    34 by (force simp add: prime_iff)
    34 by (force simp add: prime_iff)
    35 
    35