THE ELEMENTS OF THE LANGUAGE OF THOUGHT, by Arnold vander Nat (5/2009). For complete details
see, "Neurons, Concepts, and Connections in Thinking," http://orion.it.luc.edu/~avande1/connections".
CONNECTIONS  There are three different kinds of physical connections among cognitive structures:
•  analytic connections (X−−−Y),   strong connections (X–––Y),   temporary links (X····Y)
IDEAS
1. feature-units:  {#F}, {#G}, {#H}, . . .
2. simple concepts:  (≡α), (≡β), (≡γ), . . .
(≡α)—{#A}, –-(B1 B2 Bm), –-(M1 M2 Mn), –-{W}
(≡α)
α
{#A}
B1 B2 Bm
M1 M2 Mn
{W}
= the relay-node of the concept
= the activation wave pattern of the definitional part of (≡α)
= the analytically connected feature-unit that defines (≡α)
= the strongly connected concepts that further characterize (≡α), if any
= the strongly connected iconic-memory-units that utilize (≡α), if any
= the associated word unit for (≡α), if any; undenominated otherwise


{#A}
(B1)(B2)(Bm)
(M1)(M2)(Mn)
{W}

•  conceptual operators: negative (≡)[non]k(≡),  conjunctive (≡)[∩]k(≡)(≡),  potentive (≡)[can]k(≡)
3. compound concepts:  the definitional part is formed by an operator applied to concepts
(≡α)—(A1 A2 Ak), –-(B1 B2 Bm), –-(M1 M2 Mn), –-{W}
(≡α)
α
A1 A2 Ak
B1 B2 Bm
M1 M2 Mn
{W}
= the relay-node of the concept
= the activation wave pattern of the definitional part of (≡α)
= the analytically connected concepts that define (≡α)
= the strongly connected concepts that further characterize (≡α), if any
= the strongly connected iconic memory units that utilize (≡α), if any
= the associated word unit for (≡α), if any; undenominated otherwise


(A1 A2 Ak)
(B1)(B2)(Bm)
(M1)(M2)(Mn)
{W}

4. extemporaneous conceptualizations:  (≡α1) (≡α2) . . . (≡αn), concepts combined by temporary links
5. individuative pointers:  [δ1], [δ2], [δ3], . . . (demonstrative, personal, and other pronouns)
6. known individuals:  [δ] with connected items  X1, X2, . . . , Xr
[δ]—(≡α)—(A1 A2 Ak), –-(B1 B2 Bm), –-(M1 M2 Mn), –-{W}
[δ]
δ
A1 A2 Ak
B1 B2 Bm
M1 M2 Mn
{W}
= an individuative pointer (therefore, a unique referential structure)
= the reference activation wave pattern that is unique for [δ]
= the analytically connected concepts that are essential to [δ]
= the strongly connected concepts that further characterize [δ], if any
= the strongly connected iconic memory units that utilize [δ], if any
= the associated word unit for [δ], if any; undenominated otherwise
[δ]


(A1 A2 Ak)
(B1)(B2)(Bm)
(M1)(M2)(Mn)
{W}

PROPOSITIONAL FORMS
•  term-variables and predicators:  [≡]k,  [is]k
•  quantifiers:  [some]k,  [all]k
•  truth-value buffers:  (|||)k
•  propositional operators: (|||)[not]k(|||), (|||)[and]k(|||)|(|||), (|||)[or]k(|||)|(|||), (|||)[if]k(|||)|(|||), all temporary links
1. simple individual propositional forms:  (|||)—[≡]—[is]—[≡],  
2. simple general propositional forms:  (|||)—[some]—(|||)—[≡]—[is]—[≡],   (|||)—[all]—(|||)—[≡]—[is]—[≡]
3. compound propositional forms: array of forms that are temporarily linked through propositional operators
4. full propositions:  propositional form all whose term-variables have a temporary link with an idea
(|||)—[≡ ···[thatδ] ]—[is]—[≡ ···(blue)],   (|||)—[some]—(|||)—[≡ ···(events)]—[is]—[≡ ···(change history)]
5. judgments:  full proposition whose truth-value has been evaluated through system-reference
(F)—[≡ r···(Rembrandt)]—[is]—[≡ r···(French painter)]
(T)—[someδ]—(T)—[≡δ···(events)]—[is]—[≡δ···(change history)]
(T)—[allδ]—(T)—[≡δ···(tigers)]—[is]—[≡δ···(dangerous animals)]
6. expressed propositions (primary sentences): full proposition all whose component ideas are denominated
SENTENCES
2. stylized sentences:  conventional verbal transformation of a primary sentence