anchor.diff:  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   
   -spec tester_create_prime_list(1..2500) -> prime_list().
  -tester_create_prime_list(N) -> get(N).
  +tester_create_prime_list(N) -> ?MODULE:get(N).
   
   -spec tester_create_rev_prime_list(1..2500) -> rev_prime_list().
   tester_create_rev_prime_list(N) -> lists:reverse(tester_create_prime_list(N)).
  
positive.code: is_prime(V) when V =< ?PrimeCache ->
      is_prime_p(V, prime_cache());
  is_prime(V) ->
      is_prime_p(V, get(V)).
  
  -spec is_prime_p(pos_integer(), prime_list() | rev_prime_list()) -> boolean().
  is_prime_p(V, Primes) ->
  
negative.code: 
  -module(prime).
  
  -include("record_helpers.hrl").
  -include("scalaris.hrl").
  
  