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→Excerpt 1. Peirce (CP 2.315)
====Excerpt 1. Peirce (CP 2.315)====
====Excerpt 1. Peirce (CP 2.315)====
<blockquote>
<p>If a definition is to be understood as introducing the definitum, so that it means “Let so and so — the definitum — mean so and so — the definition,” then it is a proposition in the imperative mood, and consequently, not a proposition; for a proposition is equivalent to a sentence in the indicative mood.</p>
<p>The definition is thus only a proposition if the definitum be already known to the interpreter. But in that case it clearly conveys information as to the character of this definitum, which is a matter of fact.</p>
<p>C.S. Peirce, ''Collected Papers;'', CP 2.315</p>
</blockquote>
====Excerpt 2. Peirce (CP 2.330)====
====Excerpt 2. Peirce (CP 2.330)====