Three plates, three jobs

Not all signs are the same

Sign · A trichotomy, 1867– · Wherever something stands for something to someone

A thin column of woodsmoke rising from a harvested field.
Generated interpretation. Not an archival document.Smoke. An index of fire, if fire is there. Not a message.

Ask what kind of relation this is, before asking what it means.

Looks like: a picture of a pipe. Came from: smoke, a footprint. Was taught: a flag, a red light, the word pipe, which does not resemble a pipe at all. Language is that third job. Smoke does not pretend to be fire. A sentence can lie. Magritte painted a likeness and wrote a word across it so you would feel the cut.

Sourced

Peirce asked what kind of standing-for is happening: icon, index, symbol. Most signs mix the three. Saussure mapped language as a system of differences. The point is the relation, not a label.

A smoke plume and a repeating number are not signs in the same way.

Concordance

The thing
Three ways of standing for: resemblance, trace, convention.
Seen
Smoke over a field. Elsewhere in the house: a footprint, a flag, a portrait.
Sourced
C. S. Peirce’s trichotomy of icon, index, and symbol. Most signs mix the three. The point is the relation, not a label.
Miss
A smoke plume and a repeating number are not signs in the same way.
One question remains
What kind of sign is this?