60 lines
1.5 KiB
Plaintext
60 lines
1.5 KiB
Plaintext
section \<open> SI Prefixes \<close>
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theory SI_Prefix
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imports SI_Constants
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begin
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subsection \<open> Definitions \<close>
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default_sort ring_char_0
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definition deca :: "'a" where [si_eq]: "deca = 10^1"
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definition hecto :: "'a" where [si_eq]: "hecto = 10^2"
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definition kilo :: "'a" where [si_eq]: "kilo = 10^3"
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definition mega :: "'a" where [si_eq]: "mega = 10^6"
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definition giga :: "'a" where [si_eq]: "giga = 10^9"
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definition tera :: "'a" where [si_eq]: "tera = 10^12"
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definition peta :: "'a" where [si_eq]: "peta = 10^15"
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definition exa :: "'a" where [si_eq]: "exa = 10^18"
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definition zetta :: "'a" where [si_eq]: "zetta = 10^21"
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definition yotta :: "'a" where [si_eq]: "yotta = 10^24"
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default_sort field_char_0
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definition deci :: "'a" where [si_eq]: "deci = 1/10^1"
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definition centi :: "'a" where [si_eq]: "centi = 1/10^2"
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definition milli :: "'a" where [si_eq]: "milli = 1/10^3"
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definition micro :: "'a" where [si_eq]: "micro = 1/10^6"
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definition nano :: "'a" where [si_eq]: "nano = 1/10^9"
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definition pico :: "'a" where [si_eq]: "pico = 1/10^12"
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definition femto :: "'a" where [si_eq]: "femto = 1/10^15"
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definition atto :: "'a" where [si_eq]: "atto = 1/10^18"
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definition zepto :: "'a" where [si_eq]: "zepto = 1/10^21"
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definition yocto :: "'a" where [si_eq]: "yocto = 1/10^24"
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default_sort type
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subsection \<open> Examples \<close>
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lemma "2.3 \<odot> (centi \<odot> meter)\<^sup>\<three> \<cong>\<^sub>Q 2.3 \<cdot> 1/10^6 \<odot> meter\<^sup>\<three>"
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by (si_simp)
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end |