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Mirrors > Home > MPE Home > Th. List > npcan1 | Structured version Visualization version Unicode version |
Description: Cancellation law for subtraction and addition with 1. (Contributed by Alexander van der Vekens, 5-Oct-2018.) |
Ref | Expression |
---|---|
npcan1 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | id 22 |
. 2
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2 | 1cnd 10056 |
. 2
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3 | 1, 2 | npcand 10396 |
1
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