representing biological statement into logical form

In continuation of my research work on representing the biological knowledge using the logical form, I have been continuing to analyze the statements which are usually found in a science textbook of India. What follows below is an analysis of a simple sentence.

Plastids are found in plant cells only.

This is a general sentence which appears in a typical biology textbook.

But first, we need to rephrase this sentence such that it can be represented applying logic as follows:

Given any cell, if cell has plastids then the cell is a plant cell.

In another simple way the statement can be rewritten as:

Any cell, if cell consists of plastids then the cell is a kind of plant cell.

In this above statement, given any cell indicates the quantification or scope of the following proposition. There is a condition that states the necessary property that applies for the subject.

(x)[Lx > Px)

where Lx states that Plant cell consists of plastids; Px states that cell is a plant cell; > represents the if then condition.

In this way, we can now represent the following biological statements—centrioles are present in animal cells only; cell wall is present in plant cells only.


4 Responses to representing biological statement into logical form

  1. Meena says:

    It was good to see that this post has been blogged at Alfredo Tifi’s blog (
    Alfredo also uses logic in concept maps and on his blog one may find out his way of analyzing the biological statements.

    Well. it is good to know that there is similar kind of research work going on elsewhere in the concept map community.

  2. Valery says:

    Hello. Very interesting Blog. Not really what i have searched over Google, but thanks for the information.

  3. Grazia says:

    It’s perfect time to make some plans for the future and it is time to be happy. I’ve read this post and if I could I wish to suggest you some interesting things or tips. Maybe you could write next articles referring to this article. I desire to read even more things about it!

  4. Sure, Grazia. I look forward to read your article. Thanks.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

%d bloggers like this: