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→‎Formal development: distinguish alphabet and basis
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! Description
 
! Description
 
! Type
 
! Type
 +
|-
 +
| <math>\mathfrak{A}</math>
 +
| <math>\{ \mathfrak{a}_1, \ldots, \mathfrak{a}_n \}</math>
 +
| Alphabet
 +
| <math>[n] = \mathbf{n}</math>
 
|-
 
|-
 
| <math>\mathcal{A}</math>
 
| <math>\mathcal{A}</math>
 
| <math>\{ a_1, \ldots, a_n \}</math>
 
| <math>\{ a_1, \ldots, a_n \}</math>
| Alphabet
+
| Basis
 
| <math>[n] = \mathbf{n}</math>
 
| <math>[n] = \mathbf{n}</math>
 
|-
 
|-
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<math>(\mathbb{B}^n\ +\!\to \mathbb{B})</math><br>
 
<math>(\mathbb{B}^n\ +\!\to \mathbb{B})</math><br>
 
<math>[\mathbb{B}^n]</math>
 
<math>[\mathbb{B}^n]</math>
|}
+
|}<br>
    
Table&nbsp;5 summarizes the basic notations that are needed to describe the (first order) differential extensions of propositional calculi in a corresponding manner.
 
Table&nbsp;5 summarizes the basic notations that are needed to describe the (first order) differential extensions of propositional calculi in a corresponding manner.
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! Description
 
! Description
 
! Type
 
! Type
 +
|-
 +
| <math>\operatorname{d}\mathfrak{A}</math>
 +
| <math>\{ \operatorname{d}\mathfrak{a}_1, \ldots, \operatorname{d}\mathfrak{a}_n \}</math>
 +
| Alphabet of<br>
 +
differential<br>
 +
symbols
 +
| <math>[n] = \mathbf{n}</math>
 
|-
 
|-
 
| <math>\operatorname{d}\mathcal{A}</math>
 
| <math>\operatorname{d}\mathcal{A}</math>
 
| <math>\{ \operatorname{d}a_1, \ldots, \operatorname{d}a_n \}</math>
 
| <math>\{ \operatorname{d}a_1, \ldots, \operatorname{d}a_n \}</math>
| Alphabet of<br>
+
| Basis of<br>
 
differential<br>
 
differential<br>
 
features
 
features
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<math>(\mathbb{D}^n\ +\!\to \mathbb{B})</math><br>
 
<math>(\mathbb{D}^n\ +\!\to \mathbb{B})</math><br>
 
<math>[\mathbb{D}^n]</math>
 
<math>[\mathbb{D}^n]</math>
|}
+
|}<br>
    
'''&hellip;'''
 
'''&hellip;'''
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