LOGOS
PHILOSOPHICAL
ἀντικείμενον λογικόν (τό)

ΑΝΤΙΚΕΙΜΕΝΟΝ ΛΟΓΙΚΟΝ

LEXARITHMOS 864

The phrase ἀντικείμενον λογικόν, central to Aristotelian philosophy, describes the object of logical thought or science. It is not merely a physical object, but that which is placed "opposite" the mind to become an object of analysis, definition, and syllogism. Its lexarithmos (864) suggests a complex completeness and order, reflecting the organized structure of logic.

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Definition

The term «ἀντικείμενον λογικόν» is a complex philosophical concept primarily developed within the Aristotelian tradition to designate the specific object of study for each science or branch of logic. It does not refer to a simple physical thing (e.g., a tree), but rather to that which is placed "opposite" the mind, meaning that which becomes the subject or object of intellectual processing and analysis. It is the "subject" of thought in the sense of "lying opposite" the contemplating mind.

In Aristotelian logic, every science possesses its own «ἀντικείμενον λογικόν». For instance, geometry has as its object geometric figures and their properties, not the material objects in which these properties inhere. Metaphysics takes as its object "being qua being" (τὸ ὂν ᾗ ὄν), i.e., the universal principles of existence. This distinction is crucial for defining the scope and methods of each scientific discipline.

The term underscores the relationship between the thinking subject (the mind) and the object of thought. The "λογικόν" component indicates that this object is not merely passive, but is structured in a way that allows for logical analysis, definition, categorization, and syllogistic reasoning. It is the object that can become "λόγος," meaning it can be expressed in words, defined, and understood through reason.

Etymology

ἀντικείμενον ← ἀντί + κεῖμαι, λογικόν ← λόγος
The term «ἀντικείμενον λογικόν» is a compound, consisting of the participle «ἀντικείμενον» and the adjective «λογικόν». «ἀντικείμενον» is the participle of the verb «ἀντίκειμαι», which is formed from the preposition «ἀντί» ('opposite, against') and the verb «κεῖμαι» ('to lie, to be placed, to be situated'). The root «κει-» of «κεῖμαι» is an Ancient Greek root belonging to the oldest stratum of the language. «λογικόν» derives from the noun «λόγος», which in turn comes from the verb «λέγω» ('to say, to gather, to reckon, to reason'). The root «λεγ-» of «λέγω» is also an Ancient Greek root fundamental to Greek thought.

Cognate words of «ἀντικείμενον» include derivatives of «κεῖμαι» with various prefixes, such as «ὑπόκειμαι» (to lie under, to be subject to), «πρόκειμαι» (to lie before), «κατάκειμαι» (to lie down), all denoting a position or state. On the side of «λογικόν», the cognates of «λόγος» are numerous and include the verb «λογίζομαι» (to reckon, to consider, to reason), the adjective «λογικός» (pertaining to reason, rational), and compounds such as «συλλογισμός» (syllogism) and «διαλέγομαι» (to converse, to reason dialectically). These words highlight the central importance of positioning and logical processing in Greek thought.

Main Meanings

  1. The object of science or art — In the Aristotelian tradition, that which each science or art takes as its specific subject of study. E.g., the ἀντικείμενον λογικόν of medicine is health.
  2. The subject of logical analysis — Anything placed before the mind to be analyzed, defined, or categorized through reason. It is not merely a material object.
  3. The object of thought (as opposed to subject) — In the sense of 'that which lies opposite' the contemplating mind, i.e., the object that undergoes mental processing. Distinct from the grammatical subject.
  4. The universal object — In contrast to particular, sensible objects, the ἀντικείμενον λογικόν can be a universal concept or principle, such as the 'being qua being' of metaphysics.
  5. The object of definition — That which can be precisely defined through reason (λόγος), revealing its essence. Logic aims at defining the ἀντικείμενα λογικά.
  6. The object of syllogism — The basis for drawing conclusions through a syllogistic process. Premises and conclusions concern logical objects.
  7. The intelligible object — That which is apprehended not through the senses, but through intellection and abstract thought. E.g., numbers or geometric figures.

Word Family

kei- / log- (roots of the verbs κεῖμαι and λέγω)

The word family of «ἀντικείμενον λογικόν» arises from the composition of two fundamental Ancient Greek roots: the root «κει-» (from the verb «κεῖμαι», meaning 'to lie, to be situated, to be placed') and the root «λεγ-» (from the verb «λέγω», meaning 'to say, to gather, to reckon, to reason'). The root «κει-» emphasizes the positioning or existence of a thing, often in relation to something else (e.g., «ἀντί-κειμαι» means 'to lie opposite'). The root «λεγ-» denotes collection, classification, expression, and, crucially, logical thought. The co-existence of these roots in the term «ἀντικείμενον λογικόν» highlights the idea of an object placed before the mind and accessible to logical processing, thereby making it an object of knowledge and science.

κεῖμαι verb · lex. 86
The basic verb from which «ἀντικείμενον» is derived. It means 'to lie, to be situated, to be placed'. In Aristotelian philosophy, it is often used to denote the existence or positioning of a thing, as in «ὑπόκειμαι» (to be subject, to lie under properties).
ἀντίκειμαι verb · lex. 437
Means 'to lie opposite, to be opposed, to resist'. From this verb comes the participle «ἀντικείμενον». In Aristotelian logic, «ἀντικείμενα» are those things that lie opposite the mind as objects of thought, or those that are opposed to each other as contrary concepts.
ὑπόκειμαι verb · lex. 626
Means 'to lie under, to be subject to'. The «ὑποκείμενον» (as a noun) is the subject, the underlying substance or matter, that which receives properties. It is a central concept in Aristotelian metaphysics, often in dialogue with the «ἀντικείμενον».
λόγος ὁ · noun · lex. 373
One of the most polysemous words in Greek, meaning 'word, speech, discourse, reason, proportion, logic, definition'. It is the root of «λογικόν» and denotes the capacity for thought and expression that makes something 'logical', i.e., accessible to rational analysis. (Plato, «Sophist»).
λογικός adjective · lex. 403
Means 'pertaining to reason, rational, logical'. It describes something that is in accordance with reason or belongs to the domain of logic. The «λογικόν» in «ἀντικείμενον λογικόν» precisely emphasizes this dimension: the object as accessible to reason.
λογίζομαι verb · lex. 231
Means 'to reckon, to calculate, to consider, to reason'. It describes the mind's action of logically processing information, making calculations, or drawing conclusions. It is the active side of logic applied to the «ἀντικείμενον λογικόν».
συλλογισμός ὁ · noun · lex. 1053
The logical process of drawing a conclusion from two or more premises. Aristotle defined it as 'a discourse in which, certain things being stated, something other than what is stated follows of necessity from their being so'. It is the pinnacle of the logical processing of «ἀντικείμενα λογικά».

Philosophical Journey

The concept of «ἀντικείμενον λογικόν» developed gradually in ancient Greek philosophy, achieving its clearest form in Aristotelian logic and metaphysics.

5th C. BCE
Presocratics and Plato
Although the term itself was not used in this specific form, the distinction between the sensible and intelligible worlds (Plato) paved the way for the concept of an intelligible object. Plato, in his «Politeia», distinguishes objects of intellection from those of sensation.
4th C. BCE
Aristotle
Aristotle is the primary architect of the concept. In his «Posterior Analytics» and «Metaphysics», he defines the «ἀντικείμενον» of each science, emphasizing that logic deals with 'logical' objects, i.e., those amenable to definition and syllogism. The phrase «ἀντικείμενον λογικόν» appears in later commentators on Aristotle.
3rd C. BCE - 2nd C. CE
Hellenistic Philosophy
Stoics and Epicureans continued to examine the relationship between mind and object, albeit with different terminologies. The Stoic concept of the «λεκτόν», as that which is apprehended by the mind, bears similarities to the logical object.
3rd-6th C. CE
Neoplatonism and Commentators
Neoplatonic commentators on Aristotle, such as Porphyry and Simplicius, extensively used and analyzed the term «ἀντικείμενον λογικόν» to elucidate Aristotelian logic and metaphysics. Porphyry's «Isagoge» to Aristotle's «Categories» sets the framework for understanding genera and species as logical objects.
Byzantine Period
Byzantine Logicians
Byzantine scholars and theologians, continuing the ancient tradition, integrated Aristotelian logic into education and theology. The term retained its significance as the object of rational thought and scientific inquiry.
Renaissance and Modern Era
Influence on Western Thought
Through Latin translations of Aristotle, the concept of 'objectum' (from 'ob-iacere', corresponding to «ἀντί-κειμαι») entered Western philosophy. The distinction between subject and object became fundamental, with the 'logical' component emphasizing the intellectual nature of the object of knowledge.

In Ancient Texts

The concept of «ἀντικείμενον λογικόν» is fundamental to Aristotelian philosophy, though the exact phrase is often found in later commentators who systematized Aristotelian thought.

«Ἔστι δὲ τὸ ἀντικείμενον ἑκάστῃ ἐπιστήμῃ τὸ γένος περὶ ὃ ἡ ἐπιστήμη ἐστίν.»
The object of each science is the genus about which that science is concerned.
Aristotle, Posterior Analytics I, 76a3-4
«Τὸ δὲ ὂν λέγεται πολλαχῶς, ἀλλὰ πρὸς ἓν καὶ μίαν φύσιν καὶ οὐχ ὁμωνύμως, ἀλλ' ὥσπερ τὸ ὑγιεινὸν πᾶν πρὸς ὑγίειαν, τὸ μὲν τῷ φυλάττειν, τὸ δὲ τῷ ποιεῖν, τὸ δὲ τῷ σημείον εἶναι τῆς ὑγιείας, τὸ δὲ τῷ δεκτικὸν εἶναι αὐτῆς· καὶ τὸ ἰατρικὸν πᾶν πρὸς ἰατρικήν, τὸ μὲν τῷ ἔχειν αὐτήν, τὸ δὲ τῷ εὐφυὲς εἶναι πρὸς αὐτήν, τὸ δὲ τῷ ἔργον εἶναι τῆς ἰατρικῆς· οὕτω καὶ τὸ ὂν λέγεται πολλαχῶς, ἀλλὰ πρὸς μίαν ἀρχήν.»
Being is spoken of in many ways, but in relation to one thing and one nature, and not equivocally, but just as everything healthy is related to health, one thing by preserving it, another by producing it, another by being a sign of health, and another by being receptive of it; and everything medical is related to medicine, one thing by possessing it, another by being naturally adapted to it, and another by being a work of medicine; so too being is spoken of in many ways, but in relation to one principle.
Aristotle, Metaphysics Γ, 1003a33-b10
«Τὸ γὰρ ἀντικείμενον τῇ διανοίᾳ ἐστὶν ὃ περὶ ὃ ἡ διάνοια διανοεῖται.»
For the object of the intellect is that about which the intellect thinks.
Simplicius, Commentary on Aristotle's Categories, 16.29

Lexarithmic Analysis

The lexarithmos of the word ΑΝΤΙΚΕΙΜΕΝΟΝ ΛΟΓΙΚΟΝ is 864, from the sum of its letter values:

Α = 1
Alpha
Ν = 50
Nu
Τ = 300
Tau
Ι = 10
Iota
Κ = 20
Kappa
Ε = 5
Epsilon
Ι = 10
Iota
Μ = 40
Mu
Ε = 5
Epsilon
Ν = 50
Nu
Ο = 70
Omicron
Ν = 50
Nu
= 0
Λ = 30
Lambda
Ο = 70
Omicron
Γ = 3
Gamma
Ι = 10
Iota
Κ = 20
Kappa
Ο = 70
Omicron
Ν = 50
Nu
= 864
Total
1 + 50 + 300 + 10 + 20 + 5 + 10 + 40 + 5 + 50 + 70 + 50 + 0 + 30 + 70 + 3 + 10 + 20 + 70 + 50 = 864

864 decomposes into 800 (hundreds) + 60 (tens) + 4 (units).

The 18 Methods

Applying the 18 traditional lexarithmic methods to the word ΑΝΤΙΚΕΙΜΕΝΟΝ ΛΟΓΙΚΟΝ:

MethodResultMeaning
Isopsephy864Base lexarithmos
Decade Numerology98+6+4=18 → 1+8=9 — Ennead, the number of completion and spiritual fullness, symbolizing the perfection of logical structure.
Letter Count2016 letters (ἀντικείμενον: 10, λογικόν: 6) — Hexadecad, the number of harmony and balance, indicating the order brought by logical analysis.
Cumulative4/60/800Units 4 · Tens 60 · Hundreds 800
Odd/EvenEvenFeminine force
Left/Right HandRightDivine (≥100)
QuotientComparative method
NotarikonA-N-T-I-K-E-I-M-E-N-O-N L-O-G-I-K-O-NAnalysis of Notion, Truth, Idea, Knowledge, Essence, Intellect, Mind, Order, Nature, Object, Reason, Ontology, Gnosis, Insight, Kriterion, Order, Nous.
Grammatical Groups10V · 6S · 4M10 vowels, 6 semivowels (nu, mu, lambda, nu, nu, lambda), 4 mutes (tau, kappa, gamma, kappa).
PalindromesNo
OnomancyComparative
Sphere of DemocritusDivination with lunar day
Zodiacal IsopsephySun ☉ / Aries ♈864 mod 7 = 3 · 864 mod 12 = 0

Isopsephic Words (864)

Words from the Liddell-Scott-Jones lexicon with the same lexarithmos (864) as «ἀντικείμενον λογικόν», but with different roots, highlight the numerical complexity of the Greek language:

ἀβαίνω
the verb 'to go away, to depart'. While «ἀντικείμενον» denotes that which is placed before, «ἀβαίνω» signifies moving away, an interesting contrast in motion and position.
ὀρθογραφία
the 'correct writing'. The connection to «λογικόν» is evident, as orthography concerns the correct arrangement of letters and words, just as logic concerns the correct arrangement of concepts and syllogisms.
Πυθαγόρας
the famous ancient Greek philosopher and mathematician. The presence of his name as an isopsephic with «ἀντικείμενον λογικόν» underscores the deep relationship of Greek philosophy with logic, mathematics, and the search for order.
μέθυσις
the 'drunkenness, the state of intoxication'. It represents the antithesis to reason and sobriety, as intoxication clouds judgment and the capacity for rational thought, which «ἀντικείμενον λογικόν» requires.
παραδοχή
the 'acceptance, reception'. It signifies the act of receiving something, whether an idea or an object. This can be linked to how the mind 'accepts' or receives an «ἀντικείμενον λογικόν» for processing.
ἐνδοχεῖον
the 'receptacle, container, place of reception'. It denotes a space or means for receiving or holding something. Metaphorically, the mind can be seen as an «ἐνδοχεῖον» for «ἀντικείμενα λογικά».

The LSJ lexicon contains a total of 71 words with lexarithmos 864. For the full catalog and AI semantic filtering, see the interactive tool.

Sources & Bibliography

  • Liddell, H. G., Scott, R., Jones, H. S.A Greek-English Lexicon, with a revised supplement. Oxford: Clarendon Press, 1996.
  • AristotlePosterior Analytics. Translated by Jonathan Barnes. Oxford: Clarendon Press, 1994.
  • AristotleMetaphysics. Translated by W. D. Ross. In The Basic Works of Aristotle, edited by Richard McKeon. New York: Random House, 1941.
  • PlatoRepublic. Translated by G. M. A. Grube, revised by C. D. C. Reeve. Indianapolis: Hackett Publishing Company, 1992.
  • PorphyryIsagoge. Translated by Edward W. Warren. Toronto: Pontifical Institute of Mediaeval Studies, 1975.
  • SimpliciusOn Aristotle's Categories 1-4. Translated by Michael Chase. Ithaca, NY: Cornell University Press, 2003.
  • Barnes, JonathanAristotle: A Very Short Introduction. Oxford: Oxford University Press, 2000.
  • Long, A. A., Sedley, D. N.The Hellenistic Philosophers, Vol. 1: Translations of the Principal Sources with Philosophical Commentary. Cambridge: Cambridge University Press, 1987.
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