Material implication operations in memory

An apparatus, comprising:

• a first memory cell coupled to a first access line and to a first of a plurality of second access lines;
• a second memory cell coupled to the first access line and to a second of the plurality of second access lines;
• and
• a controller configured to perform a material implication operation on values stored on the first and second memory cells by:
• applying a first signal to the first access line for a first period of time;
• apply a second signal to the first of the plurality of second access lines for a second period of time, wherein the second period of time is within the first period of time;
• and
• apply a third signal to the second of the plurality of second access lines for a third period of time, wherein the third period of time is within the second period of time;
• and
• wherein a result of the material implication operation is stored on the second memory cell subsequent to the application of the third signal.

A method, comprising:

• applying a first signal to an access line to which a plurality of memory cells are commonly coupled, wherein a first memory cell of the plurality is coupled to a first of a plurality of second access lines and a second memory cell of the plurality is coupled to a second of the plurality of second access lines;
• applying, while the first signal is being applied to the first access line, a second signal to the first of the plurality of second access lines, wherein a voltage applied across the first memory cell as a result of the application of the second signal is sufficient to switch, when the first memory cell is programmed to a first logical state, the first memory cell from a first resistance state to a second resistance state such that a voltage on the first access line is raised subsequent to the switch of the first memory cell;
• and
• applying, while the first and the second signals are being applied, a third signal to the second of the plurality of second access lines, wherein a material implication operation is performed as a result of applying the signals, and a result of the material implication operation is stored on the second memory cell subsequent to applying the third signal.

A method, comprising:

• performing a material implication operation on values stored on one and another of a plurality of memory cells coupled to a first access line by applying a plurality of material implication signals in a particular sequence on the one and the another of the plurality of memory cells, which comprises:
• applying a first of the plurality of material implication signals on the first access line;
• applying, while the first of the plurality of material implication signals is being applied to the first access line, a second of the plurality of material implication signals on a second access line to which the one of the plurality of memory cells is coupled;
• applying, while the second of the plurality of material implication signals is being applied to the second access line, a third of the plurality of material implication signals on a second access line to which the another of the plurality of memory cells is coupled;
• and
• wherein:
• a value stored on the one of the plurality of memory cells is an antecedent of the material implication operation;
• a value stored on the another of the plurality of memory cells is a consequent of the material implication operation;
• and
• a result of the material implication operation performed on values stored on the one of the plurality of memory cells and the second of the plurality of memory cells is stored in the another of the plurality of memory cells.