13 lines
241 B
Plaintext
13 lines
241 B
Plaintext
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import Mathlib.Data.Real.Basic
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namespace Real
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/--
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The Minkowski sum of two sets `s` and `t` is the set
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`s + t = { a + b : a ∈ s, b ∈ t }`.
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-/
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def minkowski_sum (s t : Set ℝ) :=
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{ x | ∃ a ∈ s, ∃ b ∈ t, x = a + b }
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end Real
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