Truth Tables

Expression Table

Evaluate a compound expression one row at a time.

logic-computation Every row is intentionally ordered and pinned to the lesson specification.

Example

Evaluate a compound expression one row at a time.

highlighted = computed this step

Build the concrete table

Compute the highlighted logic-table value.

A=0 B=0A OR B=0 NOT both=1 output=0\begin{array}{c|c}\text{A=0 B=0}&\hlmath{\text{A OR B=0 NOT both=1 output=0}}\end{array}

Build the concrete table

Compute the highlighted logic-table value.

A=0 B=0A OR B=0 NOT both=1 output=0A=0 B=1A OR B=1 NOT both=1 output=1\begin{array}{c|c}\text{A=0 B=0}&\text{A OR B=0 NOT both=1 output=0}\\\text{A=0 B=1}&\hlmath{\text{A OR B=1 NOT both=1 output=1}}\end{array}

Build the concrete table

Compute the highlighted logic-table value.

A=0 B=0A OR B=0 NOT both=1 output=0A=0 B=1A OR B=1 NOT both=1 output=1A=1 B=0A OR B=1 NOT both=1 output=1\begin{array}{c|c}\text{A=0 B=0}&\text{A OR B=0 NOT both=1 output=0}\\\text{A=0 B=1}&\text{A OR B=1 NOT both=1 output=1}\\\text{A=1 B=0}&\hlmath{\text{A OR B=1 NOT both=1 output=1}}\end{array}

Build the concrete table

Compute the highlighted logic-table value.

A=0 B=0A OR B=0 NOT both=1 output=0A=0 B=1A OR B=1 NOT both=1 output=1A=1 B=0A OR B=1 NOT both=1 output=1A=1 B=1A OR B=1 NOT both=0 output=0\begin{array}{c|c}\text{A=0 B=0}&\text{A OR B=0 NOT both=1 output=0}\\\text{A=0 B=1}&\text{A OR B=1 NOT both=1 output=1}\\\text{A=1 B=0}&\text{A OR B=1 NOT both=1 output=1}\\\text{A=1 B=1}&\hlmath{\text{A OR B=1 NOT both=0 output=0}}\end{array}