flexible layout example

[Staffan Ringbom]

Hello,
Have you wondered how to make a flexible layout which fits your
needs? It is easeir than you think. the amsthm package is flexible and 
has  the most you need, so why don't use it as  your starting point. So 
I did. A simple copy and paste from the existing layouts can be used
to create a very flexible "ego" layout, with article as the base.

As you see from the attached layout file and inclusion file, it
is very easy to access the amtheorems flexiblity in your own article
environment.
just copy the files to the directory with your layout files,
start LyX, choose edit-reconfigure, restart LyX and enjoy
hope you find the example useful

# COPIED FROM ams-seq.inc
# Author : David L. Johnson <[EMAIL PROTECTED]>
# Probably broken by Jean-Marc Lasgouttes <[EMAIL PROTECTED]>
# modified and modularized by Emmanuel GUREGHIAN <[EMAIL PROTECTED]>
# further slightly amended by Staffan Ringbom
# These are only the theorems styles environnements
# The environnements defined are :
# - Theorem
# - Corollary
# - Lemma
# - Proposition
# - Conjecture
# - Criterion
# - Algorithm
# - Fact 
# - Axiom
# - Definition
# - Assumption
# - Example
# - Condition
# - Problem
# - Exercise
# - Remark
# - Claim
# - Note
# - Notation
# - Summary
# - Acknowledgement
# - Case
# - Conclusion


# Theorem-numbered style declaration
Style Theorem
  Preamble
    \theoremstyle{plain}    
    \newtheorem{thm}{Theorem} 
  EndPreamble
End  

# Corollary-numbered style declaration
Style Corollary
  Preamble
    \theoremstyle{plain}    
    \newtheorem{cor}{Corollary} 
  EndPreamble
End  

# Lemma-numbered style declaration
Style Lemma
  Preamble
    \theoremstyle{plain}    
    \newtheorem{lem}{Lemma} 
  EndPreamble
End  

# Proposition-numbered style declaration
Style Proposition
  Preamble
    \theoremstyle{plain}    
    \newtheorem{prop}{Proposition} 
  EndPreamble
End  

# Conjecture-numbered style declaration
Style Conjecture
  Preamble
    \theoremstyle{plain}    
    \newtheorem{conjecture}{Conjecture} 
  EndPreamble
End  

# Criterion-numbered style declaration
Style Criterion
  Preamble
    \theoremstyle{plain}    
    \newtheorem{criterion}{Criterion} 
  EndPreamble
End  

# Algorithm-numbered style declaration
Style Algorithm
  Preamble
    \theoremstyle{plain}    
    \newtheorem{algorithm}{Algorithm} 
  EndPreamble
End  

# Fact-numbered style declaration
Style Fact
  Preamble
    \theoremstyle{plain}    
    \newtheorem{fact}{Fact}
  EndPreamble
End  

# Axiom-numbered style declaration
Style Axiom
  Preamble
    \theoremstyle{plain}    
    \newtheorem{ax}{Axiom}
  EndPreamble
End  

# Definition-numbered style declaration
Style Definition
  Preamble
   \theoremstyle{definition}
   \newtheorem{defn}{Definition}
  EndPreamble
End  

# Assumption-numbered style declaration
Style Assumption
  Preamble
   \theoremstyle{definition}
   \newtheorem{ass}{Assumption}
  EndPreamble
End  

# Example-numbered style declaration
Style Example
  Preamble
   \theoremstyle{definition}
    \newtheorem{example}{Example}
  EndPreamble
End  

# Condition-numbered style declaration
Style Condition
  Preamble
   \theoremstyle{definition}
    \newtheorem{condition}{Condition}
  EndPreamble
End  

# Problem-numbered style declaration
Style Problem
  Preamble
   \theoremstyle{definition}
    \newtheorem{problem}{Problem}
  EndPreamble
End  

# Exercise-numbered style declaration
Style Exercise
  Preamble
   \theoremstyle{definition}
    \newtheorem{xca}{Exercise}
  EndPreamble
End  

# Remark-numbered style declaration
Style Remark
  Preamble
    \theoremstyle{remark}
    \newtheorem{rem}{Remark}
  EndPreamble
End  

# Claim-numbered style declaration
Style Claim
  Preamble
    \theoremstyle{remark}    
    \newtheorem{claim}{Claim}
  EndPreamble
End  

# Note-numbered style declaration
Style Note
  Preamble
    \theoremstyle{remark}    
    \newtheorem{note}{Note}
  EndPreamble
End  

# Notation-numbered style declaration
Style Notation
  Preamble
    \theoremstyle{remark}    
    \newtheorem{notation}{Notation}
  EndPreamble
End  

# Summary-numbered style declaration
Style Summary
  Preamble
    \theoremstyle{remark}    
    \newtheorem{summary}{Summary}
  EndPreamble
End  

# Acknowledgement-numbered style declaration
Style Acknowledgement
  Preamble
    \theoremstyle{remark}    
    \newtheorem{acknowledgement}{Acknowledgement}
  EndPreamble
End  

# Case-numbered style declaration
Style Case
  Preamble
    \theoremstyle{remark}    
    \newtheorem{case}{Case}
  EndPreamble
End  

# Conclusion-numbered style declaration
Style Conclusion
  Preamble
    \theoremstyle{remark}    
    \newtheorem{conclusion}{Conclusion}
  EndPreamble
End  


####################################################
# Proof style declaration, copied from amsdefs.inc
####################################################

Style Proof
  Margin                First_Dynamic
  LatexType             Environment
  LatexName             proof
  NextNoIndent          1
  LabelSep              xx
  ParIndent             MMM  
  ParSkip               0.4
  ItemSep               0.2
  TopSep                0.7
  BottomSep             0.7
  ParSep                0.3
  Align                 Block
  AlignPossible         Block, Left
  LabelType             Static
  LabelString           "Proof."
  EndLabelType          Box
  
  # standard font definition
  Font
    Shape               Up
    Size                Normal
  EndFont

  # label font definition
  LabelFont
    Shape               Italic
  EndFont

  # We don't want the preamble from Theorem
  Preamble
  EndPreamble 
End  


#% Do not delete the line below; configure depends on this
#  \DeclareLaTeXClass[article]{article (ego)}
# For introduction of AMStheorem style enivronments
# adapted from ams-seq.inc and amsdefs.inc

Input article.layout
Input ego.inc

# Use a simple preamble.
Preamble
 \usepackage{amsthm}
EndPreamble