"Let a barb in the sign indicate the direction of the change."
English
George Spencer Brown
72 posts
George Spencer Brown
@LawsofForm
Mathematician, consulting engineer, psychologist, educational consultant and practitioner, consulting psychotherapist, author, and poet.
UK 加入时间 Nisan 2009
2 关注228 粉丝
"Call any such change a step.
Let a sign
⇀
stand for the words
is changed to."
English
"In any expression, let any arrangement be changed for an equivalent arrangement."
English
"In general, let injunctions be contracted to any degree in
which they can still be followed".
English
"… be contracted to the one injunction (of mixed intent) below."
English
"Let the four injunctions (two of constructive intent, two of conventional intent) above…"
English
Second canon. Contraction of reference
1. Construct a cross.
2. Mark it with c.
3. Let c be its name.
4. Let the name indicate the cross.
English
"Call the space s pervading an arrangement a, whether or not a is the only arrangement pervaded by s, the pervasive space of a."
English
"Pervasive space. Let any given space s(n) be said to pervade any arrangement in which s(n) is the shallowest space."
English
"Call the crosses standing under any cross c, written or
unwritten, the crosses pervaded by the shallowest space in c."
English
"Unwritten cross. Suppose any s(0) to be surrounded by an unwritten cross."
English
"Let any cross standing in the shallowest space in c be said
to stand under, or to be covered by, c."
English
"Let any cross standing in any space in a cross c be said to be
contained in c."
English
"Call the space reached by no crossing from s the shallowest space in a."
English
"Call a space reached by the greatest number of inwards crossings from S a deepest space in a."
English
… call the number n of crosses that must be crossed to reach a space s(n) from s the depth of s(n) with regard to s."
English