src/HOL/Nonstandard_Analysis/CLim.thy
changeset 70723 4e39d87c9737
parent 70228 2d5b122aa0ff
child 75866 9eeed5c424f9
equal deleted inserted replaced
70722:ae2528273eeb 70723:4e39d87c9737
     9 theory CLim
     9 theory CLim
    10   imports CStar
    10   imports CStar
    11 begin
    11 begin
    12 
    12 
    13 (*not in simpset?*)
    13 (*not in simpset?*)
    14 declare hypreal_epsilon_not_zero [simp]
    14 declare epsilon_not_zero [simp]
    15 
    15 
    16 (*??generalize*)
    16 (*??generalize*)
    17 lemma lemma_complex_mult_inverse_squared [simp]: "x \<noteq> 0 \<Longrightarrow> x * (inverse x)\<^sup>2 = inverse x"
    17 lemma lemma_complex_mult_inverse_squared [simp]: "x \<noteq> 0 \<Longrightarrow> x * (inverse x)\<^sup>2 = inverse x"
    18   for x :: complex
    18   for x :: complex
    19   by (simp add: numeral_2_eq_2)
    19   by (simp add: numeral_2_eq_2)