CASES : MEXPR

CASES is a top-level command.
Rule of Cases.
The command format for CASES is:

 <n>CASES   P6   D1   P5   H4     P3     H2      B      A      C     P6-HYPS    D1-HYPS    P5-HYPS    H4-HYPS    P3-HYPS    H2-HYPS 
"LINE" "LINE" "LINE" "LINE" "LINE" "LINE" "GWFF" "GWFF" "GWFF" "LINELIST" "LINELIST" "LINELIST" "LINELIST" "LINELIST" "LINELIST"


The arguments have the following meaning:
P6 : Conclusion for Both Cases
D1 : Line with Disjunction
P5 : Conclusion in Case 2
H4 : Line with Assumption for Case 2 (Right Disjunct)
P3 : Conclusion in Case 1
H2 : Line with Assumption for Case 1 (Left Disjunct)
B : Right Disjunct
A : Left Disjunct
C : Conclusion
P6-HYPS : Hypotheses
D1-HYPS : Hypotheses
P5-HYPS : Hypotheses
H4-HYPS : Hypotheses
P3-HYPS : Hypotheses
H2-HYPS : Hypotheses

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CASES : SRULE

CASES is an inference rule.
Its priority is 1

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