Work Classification Layer
Compare Works
Pick two or more works to set their attribute fingerprints, dimension-by-dimension passages, and shared school embodiments side by side. Especially useful for author-stage comparisons (Wittgenstein early vs late) and for setting a single tradition's foundational texts against each other.
Papers in Philosophical Logic
Lewis's 1998 collection — counterfactuals, modal logic, conditional probability, two-dimensional semantics
Attribute Fingerprint
Rows where works disagree are highlighted in gold. The full ontology grid is shown.
| Attribute | Papers in Philosophical Logic (Late) |
|---|---|
| Time · Extent | Infinite |
| Time · Ontological Status | Substantival |
| Time · Grain | Continuous |
| Time · Freedom | Deterministic |
| Time · Traversability | Linear |
| Time · Dimensionality | One |
| Time · Direction | Uni-directional |
| Space · Extent | Infinite |
| Space · Ontological Status | Substantival |
| Space · Curvature | Flat |
| Space · Dimensionality | Three |
| Space · Locality | Local |
| Matter · Extent | Infinite |
| Matter · Ontological Status | Substantival |
| Matter · Conservation | Conserved |
| Matter · Dimensionality | Three |
| Matter · Locality | Local |
| Observer · Time Instance | Single |
| Observer · Space Instance | Single |
| Observer · Knowledge Extent | Mediated |
| Observer · Knowledge Retainment | Partial |
| Observer · Physicality | Embodied |
| Observer · Agency | Active |
| Observer · Number | Plural |
| Observer · Metaphysical Agency | Impersonal |
| Observer · Moral Authority | Reason |
| Observer · Theological Method | — |
| Energy · Extent | Infinite |
| Energy · Ontological Status | Substantival |
| Energy · Conservation | Conserved |
| Energy · Dispersibility | Irreversible |
| Information · Ontological Status | Substantival |
| Information · Cosmic Conservation | Conserved |
| Information · Personal Conservation | Non-conserved |
| Information · Granularity | Continuous |
Dimension-by-Dimension Evidence
What each work's passages reveal about its stance on each of the six dimensions.
Time
Papers in Philosophical Logic
1998. Lewis was 57, three years before his October 2001 death from diabetes complications.
Space
Papers in Philosophical Logic
Princeton — Lewis's institutional base from 1970 until his death.
Matter
Papers in Philosophical Logic
Career-spanning essay collection (~370 pages). Lewis added brief introductions to each section.
Observer
Papers in Philosophical Logic
Late Lewis. The observer-philosopher is organising thirty years of philosophical-logical work for the first time in a single accessible collection.
Energy
Papers in Philosophical Logic
Synthesising-logical energies. The volume groups papers thematically (conditionals, counterfactuals, modal logic, probability, semantics) rather than chronologically.
Information
Papers in Philosophical Logic
Cambridge Collected Papers, vol. 1. Contains the principal Lewisian statements on counterfactuals, conditional probability, modal logic, and the foundations of natural-language semantics.
Internal Tensions
Where each work's argument pulls against itself.
Principal reference volume for Lewis's philosophical logic. The triviality result on conditional probabilities (1976) has been continuously discussed and is one of Lewis's most-cited papers; the time's-arrow paper (1979) shaped the contemporary discussion of temporal asymmetry; counterpart theory remains a major framework in modal metaphysics.