Question
If Hirji laughs, Roorkee gets angry.
Roosevelt does not climb Rees.
So, Hirji laughs.

Answer

Hint: $P =$ Hirji laughs.
$Q =$ Rudki gets res.
Symbolic representation of the argument:
$P\rightarrow Q$
$\sim Q$
$\therefore P$
Combining the two bases of this argument as a whole, the argument will be as follows:
$(P\rightarrow Q)\ \&\ \sim Q$
$\therefore P$
Truth Table:
  Support statement The resulting statement
  $1$ $2$ $3$ $4$ $5$ $6$
$P$ $Q$ $\sim Q$ $P\rightarrow Q$ $(P\rightarrow Q) \& \sim Q$ $P$
$1$ $T$ $T$ $F$ $T$ $F$ $T$
$2$ $T$ $F$ $T$ $F$ $F$ $T$
$3$ $F$ $T$ $F$ $T$ $F$ $F$
$4$ $F$ $F$ $T$ $T$ $T^*$ $F^*$
  $2 (\sim)$ $1, 2(\rightarrow)$ $4, 3 (\&)$ As $1$
Judgment of the validity of the argument: A total of six columns have been formed in the above fact sheet. In which the column no. The $5th$ is the base statement and the column $9$ is the presentation of the result statement. Out of the total four rows of the truth table, only rows. The base statement in $4$ is true $‘T’$ and the resulting statement in the same row is false $‘F’.$ Hence this argument is disproportionate.

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