pith. machine review for the scientific record. sign in
theorem

toComplex_add

proved
show as:
view math explainer →
module
IndisputableMonolith.Foundation.ComplexFromLogic
domain
Foundation
line
92 · github
papers citing
none yet

open explainer

Generate a durable explainer page for this declaration.

open lean source

IndisputableMonolith.Foundation.ComplexFromLogic on GitHub at line 92.

browse module

All declarations in this module, on Recognition.

explainer page

Tracked in the explainer inventory; generation is lazy so crawlers do not trigger LLM jobs.

open explainer

depends on

formal source

  89@[simp] theorem toComplex_one : toComplex (1 : LogicComplex) = 1 := by
  90  exact toComplex_fromComplex 1
  91
  92@[simp] theorem toComplex_add (z w : LogicComplex) :
  93    toComplex (z + w) = toComplex z + toComplex w := by
  94  simp [HAdd.hAdd, Add.add]
  95
  96@[simp] theorem toComplex_neg (z : LogicComplex) :
  97    toComplex (-z) = -toComplex z := by
  98  simp [Neg.neg]
  99
 100@[simp] theorem toComplex_sub (z w : LogicComplex) :
 101    toComplex (z - w) = toComplex z - toComplex w := by
 102  simp [HSub.hSub, Sub.sub]
 103
 104@[simp] theorem toComplex_mul (z w : LogicComplex) :
 105    toComplex (z * w) = toComplex z * toComplex w := by
 106  simp [HMul.hMul, Mul.mul]
 107
 108@[simp] theorem toComplex_inv (z : LogicComplex) :
 109    toComplex z⁻¹ = (toComplex z)⁻¹ := by
 110  simp [Inv.inv]
 111
 112@[simp] theorem toComplex_div (z w : LogicComplex) :
 113    toComplex (z / w) = toComplex z / toComplex w := by
 114  simp [HDiv.hDiv, Div.div]
 115
 116/-- Embed recovered reals into recovered complex numbers. -/
 117def ofLogicReal (x : LogicReal) : LogicComplex where
 118  re := x
 119  im := 0
 120
 121@[simp] theorem toComplex_ofLogicReal (x : LogicReal) :
 122    toComplex (ofLogicReal x) = (toReal x : ℂ) := by