Polynym Math

set comparison between two polynyms

Pmental function ⊥ Pdesign methods


Equality

$$A \neq B$$
A is not equal to B

Subset

$$A \not\subseteq B$$
A is not a subset of or equal to B

Superset

$$A \not\supseteq B$$
A is not a superset of or equal to B

Intersection

$$A \cap B =$$
{ }

Union

$$A \cup B =$$
{ Christopher Alexander and J., awareness, decision, love, recognition, recollection }

Symmetric Difference

$$A \ominus B =$$
{ Christopher Alexander and J., awareness, decision, love, recognition, recollection }

Difference

$$A - B =$$
{ awareness, decision, recognition, recollection }

Difference

$$B - A =$$
{ Christopher Alexander and J., love }

Cartesian Product

$$A \times B =$$
{ (awareness, Christopher Alexander and J.),
(awareness, love),
(decision, Christopher Alexander and J.),
(decision, love),
(recognition, Christopher Alexander and J.),
(recognition, love),
(recollection, Christopher Alexander and J.),
(recollection, love) }

mental function

Source
Stuart & Hubert Dreyfus
Area
Sociology
Mode
step
Depth
4
User
scotty


vs.

design methods

Mode
type
Depth
2
User
scotty
4 steps of mental function

2 types of design methods
recollection
recognition
decision
awareness

love
Christopher Alexander and J.
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