added lemmas; uniform names --HG-- rename : src/HOL/Data_Structures/Priority_Queue.thy => src/HOL/Data_Structures/Priority_Queue_Specs.thy
new def of sorted and sorted_wrt --HG-- extra : amend_source : 063fe8412a72415725783d8336fe89d3cd0ca676
dont rename PQ.del_min
del_min -> split_min
tuned
ran isabelle update_op on all sources
added PQ with merge
tuned names
simpler definition
typo
tuning
reorg
added sorted_wrt to List; added Data_Structures/Binomial_Heap.thy