Metamath Proof Explorer
Description: Difference of exponents law for exponential function, deduction form.
(Contributed by SN, 25-Apr-2025)
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Ref |
Expression |
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Hypotheses |
efsubd.a |
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efsubd.b |
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Assertion |
efsubd |
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Proof
Step |
Hyp |
Ref |
Expression |
1 |
|
efsubd.a |
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2 |
|
efsubd.b |
|
3 |
|
efsub |
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4 |
1 2 3
|
syl2anc |
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