if (require("QCA")) {
# example from Ragin (1987, p.99)
deMorgan("AC + B~C")
# with different intersection operators
deMorgan("AB*EF + ~CD*EF")
# using an object of class "qca" produced with eqmcc()
data(LC)
cLC <- eqmcc(LC, "SURV", include = "?")
deMorgan(cLC)
# parsimonious solution
pLC <- eqmcc(LC, "SURV", include = "?")
deMorgan(pLC)
}
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