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comments from mdw - add note re universal quantification
[topbloke-formulae.git]
/
create-base.tex
diff --git
a/create-base.tex
b/create-base.tex
index e564623868465dc31ec2739dcc54f3d7b7bd3d43..778999423bfa6adc7692cea9d84844adf97dd3c9 100644
(file)
--- a/
create-base.tex
+++ b/
create-base.tex
@@
-41,8
+41,8
@@
Consider some $D \in \py$.
$B \not\in \py$ so $D \neq B$. So $D \isin B \equiv D \isin L$
and $D \le B \equiv D \le L$.
$B \not\in \py$ so $D \neq B$. So $D \isin B \equiv D \isin L$
and $D \le B \equiv D \le L$.
-Thus $L \haspatch \p \
implies
B \haspatch P$
-and $L \nothaspatch \p \
implies
B \nothaspatch P$.
+Thus $L \haspatch \p \
equiv
B \haspatch P$
+and $L \nothaspatch \p \
equiv
B \nothaspatch P$.
$\qed$
$\qed$