if vs case

test.core

module 'test' ['a'/1,
	       'b'/1,
	       'c'/1,
	       'module_info'/0,
	       'module_info'/1]
    attributes []
'a'/1 =
    %% Line 4
    fun (_cor0) ->
	%% Line 5
	case <> of
	  <>
	      when call 'erlang':'>'
		    (_cor0,
		     5) ->
	      %% Line 6
	      'greater'
	  %% Line 7
	  <> when 'true' ->
	      %% Line 8
	      'not_greater'
	end
'b'/1 =
    %% Line 11
    fun (_cor0) ->
	%% Line 12
	case <> of
	  %% Line 13
	  <>
	      when call 'erlang':'>'
		    (_cor0,
		     5) ->
	      %% Line 14
	      'greater'
	  %% Line 15
	  <> when 'true' ->
	      %% Line 16
	      'not_greater'
	end
'c'/1 =
    %% Line 19
    fun (_cor0) ->
	case _cor0 of
	  <X>
	      when call 'erlang':'>'
		    (_cor0,
		     5) ->
	      %% Line 20
	      'greater'
	  %% Line 21
	  <_cor2> when 'true' ->
	      %% Line 22
	      'not_greater'
	end
'module_info'/0 =
    fun () ->
	call 'erlang':'get_module_info'
	    ('test')
'module_info'/1 =
    fun (_cor0) ->
	call 'erlang':'get_module_info'
	    ('test', _cor0)
end

test.erl

-module(test).
-compile(export_all).

a(X) ->
    if X > 5 ->
            greater;
       true ->
            not_greater
    end.

b(X) ->
    case X > 5 of 
        true ->
            greater;
        false ->
            not_greater
end.

c(X) when X > 5 ->
    greater;
c(_) ->
    not_greater.