Set Bullet Behavior "Strict Subproofs".
(** * Results related to resouce_decay *)
(* todo: maybe remove one of those lemmas *)

Lemma join_YES_l {r1 r2 r3 sh1 sh1' k pp} :
sepalg.join r1 r2 r3 ->
r1 = YES sh1 sh1' k pp ->
exists sh3 sh3',
r3 = YES sh3 sh3' k pp.