I know from locally stored knowledge that:
Fact 1:
George H. W. Bush
is a
US president
([fact: ["123991972@trueknowledge.com"]])
Fact 1
is true for
January 20th 1989 - January 20th 1993
([fact: ["130969956@trueknowledge.com"]])
Fact 3:
George H. W. Bush
is not a
US president
([fact: ["130984540@trueknowledge.com"]])
Fact 3
is true for
the beginning of time - January 20th 1989
([fact: ["130984541@trueknowledge.com"]])
By calculation (generator: ["strictequal1@trueknowledge.com"]) I know that:
January 20th 1989
is strictly equal to
January 20th 1989
By calculation (generator: ["fact_that_became_true_on@trueknowledge.com"]) I know that:
the fact 123991972@trueknowledge.com
is a fact that became true on
January 20th 1989