In this presentation is not strictly necessary to include Meaning 2. Indeed, it is
actually redundant, when n = 2. However, it usefully emphasises the sense of a
list that sets out the range of options or possibilities.
Diagrams
Tables can be amalgamated to become a diagram. Thus the meanings of an
ambiguous provision and the effect that each would cause if declared legally
correct by a court can be set out in a diagram where the first table or column
shows the meanings, the third columns shows the effect that each meaning
causes and the second column contains an arrow pointing from the first
column to the second column indicating that each meaning causes the
corresponding effect:
Meanings
Effects
Meaning 1
Effect 1
Meaning 2
Effect 2
Meaning n
Effect n
Figure 2 Meanings and Effects
Probability
A number of symbols are used for probability:
P(A) = probability that event A occurs
P(B) = probability that event B occurs
P(A
B) = probability that event A or event B occurs (A union B)
P(A
B) = probability that event A and event B both occur (A intersection B)
P(A') = probability that event A does not occur
P(A | B) = probability that event A occurs given that event B has occurred
already (conditional probability)
P(B | A) = probability that event B occurs given that event A has occurred
already (conditional probability)
P(B | A') = probability that event B occurs given that event A has not occurred
already (conditional probability)
(the empty set) = an impossible event
S (the sample space) = an event that is certain to occur
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