What is letter? 23 February 2019

What is letter?

TANAKA Akio
23 February 2019
ENSILA


1
Provisional definition of Letter, word and sentence.

1. Letter is immutable.
2. Letter has an indication.
3. Letter connects other letters.
4. Letters are finite.
5. Connected letters have a new indication, which is called word.
6. Word connects other words.
7. Words are infinite.
8. Connected words have a new indication, which is called sentence.
9. Sentences are infinite.

2
Letter is assumed to be generated from signal.Provisional definition of signal.

1. Signal is immutable.
2. Signal has energy.
3. Signal has an indication.
4. Signal connects other signals.

References
1
What is signal?
       Preface, Preparation and Preparation 2 Completed      21 November 2018 - 15 January 2019Zoho Edition
Blogger Edition
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2
How the language has been sought for ? 1-8