#DifferentialPropositionalCalculus • 1.7
https://inquiryintoinquiry.com/2020/02/18/differential-propositional-calculus-1/

Table 5 shows the #RulesOfInference responsible for giving the #DifferentialQuality \(\mathrm{d}q\) its meaning in practice.

Table 5. #DifferentialInferenceRules
https://inquiryintoinquiry.files.wordpress.com/2020/02/differential-propositional-calculus-e280a2-differential-inference-rules.png

Applications —
#Cybernetics #SystemsTheory
#QualitativeDynamics
#DiscreteDynamics

Related Subjects —
#Peirce #Logic #Semiotics
#LogicalGraphs #DifferentialLogic
#PropositionalCalculus #BooleanFunctions
#CactusGraphs #MinimalNegationOperators

#DifferentialPropositionalCalculus • 1.2
https://inquiryintoinquiry.com/2020/02/18/differential-propositional-calculus-1/

Figure 3. Back, To The Future
https://inquiryintoinquiry.files.wordpress.com/2020/02/differential-propositional-calculus-figure-3.jpg

Fig. 3 adds the new quality \(\mathrm{d}q\) to detail what changes from Fig. 1 to Fig. 2.

The quality \(\mathrm{d}q\) is a #DifferentialQuality. Its absence or presence qualifies the absence or presence of change in another quality. Like any quality it is marked in the diagram by a “circle”, here distinguishing the parts of \(X\) inside and outside the region \(\mathrm{d}Q.\)