Solution to Use truth tables to determine if the argument forms are valid: p → r q … - Sikademy

Oct. 27, 2020

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Archangel Macsika

Use truth tables to determine if the argument forms are valid: p → r q → r hence, p V q → r

Truth Table for: p → r q → r hence, p V q → r

pqrp V qp → rq → r(p V q) → r
TTTTTTT
TTFTFFF
TFTTTTT
TFFTFTF
FTTTTTT
FTFTTFF
FFTFTTT
FFFFTTT

Since for all the critical rows when the premises are true the corresponding conclusion is also true. Hence the argument form is valid.

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