diff --git a/src/bh/lib.logo b/src/bh/lib.logo
index 8190237c..a91c25fd 100644
--- a/src/bh/lib.logo
+++ b/src/bh/lib.logo
@@ -3,6 +3,8 @@
 ;;; WRITTEN BY BRIAN HARVEY AND
 ;;; PORTED TO ITS LLOGO BY ALEXEY SLYUSAR
 
+;; version 0.01
+
 TO ?
 10 OP :TEMPLATE.VAR
 END
@@ -73,3 +75,45 @@ TO FOREACH1 :TEMPLATE.VAR
 10 RUN :FOREACH.TEMPLATE
 20 FOREACH BF :TEMPLATE.LIST :FOREACH.TEMPLATE
 END
+
+ERASE PRIMITIVE MAP
+; MAP ERASED
+TO MAP :MAP.TEMPLATE :TEMPLATE.LIST
+10 OP MAP1 PREPARE.TEMPLATE :MAP.TEMPLATE :TEMPLATE.LIST 1
+END
+;MAP DEFINED
+
+TO MAP1 :MAP.TEMPLATE :TEMPLATE.LIST :TEMPLATE.NUMBER
+10 IF EMPTYP :TEMPLATE.LIST OP []
+20 LOCAL 'TEMPLATE.VAR
+30 MAKE 'TEMPLATE.VAR FIRST :TEMPLATE.LIST
+40 OP FPUT (RUN :MAP.TEMPLATE) (MAP1 :MAP.TEMPLATE (BF :TEMPLATE.LIST) 1+:TEMPL!
+ATE.NUMBER)
+END
+;MAP1 DEFINED
+
+TO MAP.SE :MAP.SE.TEMPLATE :MAP.SE.LIST
+10 IF EMPTYP :MAP.SE.LIST OP []
+20 OP MAP.SE1 FIRST :MAP.SE.LIST
+END
+;MAP.SE DEFINED
+
+TO MAP.SE1 :TEMPLATE.VAR
+10 OP SE (RUN :MAP.SE.TEMPLATE)(MAP.SE :MAP.SE.TEMPLATE BF :MAP.SE.LIST)
+END
+;MAP.SE1 DEFINED
+
+TO ITEM :ELEMENT :LIST
+10 IF :ELEMENT = 1 OP FIRST :LIST
+20 OP ITEM (:ELEMENT - 1) BF :LIST
+END
+;ITEM DEFINED
+
+ERASE PRIMITIVE MEMBER
+; MEMBER ERASED
+TO MEMBERP :WORD :LIST
+10 IF EMPTYP :LIST OP 'NIL
+20 IF EQUAL :WORD (FIRST :LIST) OP 'T
+30 OP MEMBERP :WORD (BF :LIST)
+END
+;MEMBER DEFINED