| 11 | Metaphysics |
| 111 | General metaphysics. Ontology |
| 111.1 | Concept of being, of primary substance (tode ti). Ontology |
| 111.11 | Existence, thereness. Difference in essence |
| 111.12 | Essential being. Essence. Quiddity |
| 111.125 | Possibility Inner possibility. Divine essence and possibility |
| 111.3 | Substance (ousia). Monad |
| 111.31 | Difference between substance and accidence. Appearance |
| 111.32 | Primary substance, individual substance (protè ousia). Subsistence (substant being). Hypostasis. Person |
| 111.33 | Secondary substance, abstract essence (deutera ousia) |
| 111.4 | Accidence. Qualities |
| 111.5 | Relations. Relativistic theories |
| 111.6 | Acts. Activities |
| 111.61 | Being in potentiality. Being in act |
| 111.62 | Motion. Change. Development |
| 111.7 | Created and uncreated being. Immateriality. Pure mind and spirit |
| 111.8 | Transcendental properties of being |
| 111.81 | Distinction between being and its transcendental properties |
| 111.82 | Unity. Non-being, nonexistence. Plurality. Unity and indivisibility of being |
| 111.821 | Real and logical differentiation Singularity. Identity. Unity of composition, simplicity. Metaphysical composition. Plurality, unlimited number, possibility of an infinite multitude |
| 111.83 | Truth. Falsity |
| 111.84 | Goodness. Benignity. Evil |
| 111.85 | Beauty. Ugliness |
| 111.852 | Aesthetics (objective and subjective) |
| 113/119 | Cosmology. Philosophy of nature ⇨ 524.8 The Universe. Metagalaxy. Cosmology ⇨ 53.01/.09 Special auxiliary subdivision for physics |
| 113 | General laws of nature Transformation and transience of matter |
| 113.2 | Origin of the universe. Creation. Cosmogony Scope Note: Class here also theories such as creationism, intelligent design ⇨ 2-143 Activities of God(s). Works of God(s) ⇨ 2-145.2 Creator god. Demi-urge. Designer God. Deism ⇨ 2-172.2 Origins. Cosmogony. Creation of the world ⇨ 2-175 Eschatology. End of the world. Last things ⇨ 27-143 Works of God in Christianity |
| 114 | Space. Place, internal and external. Dimension. Empty, void; full, plenum. Infinite space. Singularity and plurality. Extension |
| 115 | Time. Duration. Component of temporal duration. Eternity. World created ab aeterno. Relation of time to motion |
| 115.4 | The space-time continuum. Unity of space and time ⇨ (15) The universe, celestial or cosmic space generally. In space. Cosmic. Extraterrestrial localities ⇨ 531.111.4 Continuum of space and time |
| 116 | Motion. Development. Mobility. Transient and immanent effect. Remote action. Becoming, change, transition |
| 117 | Matter. Transmutation of matter. Primary matter (first principle). Substantial form. Material cause. Formal cause |
| 118 | Force. Energy. Determination of accidences of inorganic substances ⇨ 531.6 Mechanical energy. Conservation of mechanical energy ⇨ 536.7 Thermodynamics. Energetics |
| 119 | Quantity. Number. Constant quantity of coexistence and succession. Distinction from substance 121 Philosophical anthropology. Philosophy of humankind. Phenomenology of human person ⇨ 2-18 Man. Mankind. Humanity. Doctrinal anthropology ⇨ 39 Cultural anthropology. Ethnography. Customs. Manners. Traditions. Way of life |