comp_spec and comp_NPV compute related probabilities;
is_extreme_prob_set verifies extreme cases;
comp_complement computes a probability's complement;
is_complement verifies probability complements;
comp_prob computes current probability information;
prob contains current probability information;
is_prob verifies probabilities.
Other functions computing probabilities: comp_FDR,
comp_NPV, comp_PPV,
comp_accu, comp_acc,
comp_comp_pair,
comp_complement,
comp_complete_prob_set,
comp_fart, comp_mirt,
comp_ppod, comp_prob_freq,
comp_prob, comp_sens,
comp_spec