From blocks to definitions: Sessions 2 and 3 taught the building blocks: Lafz, Ma'na, and the Five Universals. Session 4 teaches how to use these blocks to build precise definitions.
The practical payoff: This is the practical payoff of all the preparation. Hadd, from H-D-D meaning boundary or limit, is a precise definition that draws a clear boundary around a concept, specifying exactly what falls inside it and what falls outside it.
Vague concepts, confused arguments: Without Hadd, concepts remain vague, and vague concepts produce confused arguments. The purpose of Hadd is to move from known concepts to unknown ones: it explains an unknown concept (Majhul al-Tasawwur) using known ones (Jins and Fasl).
Hadd reveals the inner reality: Hadd is a statement that captures the essential nature of the thing being defined, using its Jins and Fasl. A true Hadd reveals what the thing is — its inner reality, not just how it appears.
The basic formula: The basic formula is: Hadd = Jins + Fasl. Insan = Hayawan + Natiq.
Rational Animal, since Aristotle: Translation: "Rational Animal" — this has been the standard definition of the human being since Aristotle, used in Islamic Mantiq, Falsafa, and Kalam for 1,400 years. Rasm is different.
Rasm is different: Rasm is a statement that identifies a thing through its external properties rather than its inner essence. Rasm uses Khassah (exclusive property) instead of Fasl (essential differentia).
The Rasm formula: The Rasm formula is: Rasm = Jins + Khassah. Insan = Hayawan + Qabil lil-Dahk.
The laughing animal: Translation: "The laughing animal" — it correctly points to humans only, but through a property, not the essence. Rasm is like a photograph — it shows the face.
Hadd is like an X-ray: Hadd is like an X-ray — it shows the structure.
Example
Riba — Hadd versus Rasm: In Fiqh, a Hadd of "Riba" reveals its essence; a Rasm of "Riba" only describes what it looks like. Hadd uses Fasl (essential quality) and reveals the inner essence, answering why the thing is what it is.
Only Hadd explains: Rasm uses Khassah (exclusive property) and reveals the outer face, answering how to recognise the thing. Both correctly identify the species, but only Hadd explains it.
Key Terms
- Hadd (الحد) — definition
- Rasm (الرسم) — description/delineation
- Majhul al-Tasawwur — unknown concept
Quran or Hadith
None on this slide. Saying of Ibn Sina, as shown: "The Hadd is superior to the Rasm — because it explains the why behind the what. Whoever knows only the Rasm of a thing knows its face — but not its soul. Whoever knows the Hadd knows both." — to be checked.
Fresh diagram to be drawn: Side-by-side comparison: Hadd (X-ray: Jins + Fasl) vs Rasm (Photograph: Jins + Khassah). To be drawn in Project Desk colours.
- Hadd is a precise definition that draws a clear boundary around a concept, specifying exactly what falls inside it and what falls outside it.
- In Fiqh, a Hadd of "Riba" reveals its essence; a Rasm of "Riba" only describes what it looks like. Hadd uses Fasl (essential quality) and reveals the inner essence, answering why the thing is what it is.