Topic nodes are high level nodes with proper names:

• calculated data link
• goal
• goal group
• simple_data_link

Proxy nodes stand in for and do the work of topic-nodes:

• data link proxy
• fuzzy curve
• goal group proxy
• goal proxy
• switch

• crisp argument
• fuzzy argument
• xy-pair

• and
• compare
• crisp argument
• data link proxy
• false
• fuzzy argument
• fuzzy curve
• goal group proxy
• goal proxy
• if
• not
• or
• sor
• switch
• true
• undetermined
• union
• xor

Conditional nodes can change the path of evaluation:

• if
• sor
• switch

• e
• error
• false
• k
• pi
• true
• undetermined

• abs
• acos
• addition
• asin
• atan
• ave-nz
• ave
• ceil
• cos
• cosh
• deg2rad
• division
• equation
• exp
• floor
• if
• ln
• log
• max
• min
• mod
• multiplication
• pow
• rad2deg
• sin
• sinh
• sqrt
• subtraction-negation
• tan
• tanh