我正在处理使用unicode下标k（“\ _k”）的赋值。但是，我没有得到下标k，而是得到了这个：
！[] [1]
仍然可以使用带有数字和一些字母的下标，但不能使用'k'。
我最初遇到了emacs 24.3的问题，然后被告知更新到24.4。这个问题仍然存在。
是否有其他人遇到此问题并找到了解决方案？
我在使用Emacs v.24.4.1的Mac上运行
提前致谢
修改
这是我的.emacs文件：
(load-file (let ((coding-system-for-read 'utf-8))
(shell-command-to-string "agda-mode locate")))
(set-default-font "-apple-DejaVu_Sans-medium-normal-normal-*-*-*-*-*-p-0-iso10646-1")
; Change Control-c Control-, and Control-c Control-. in Agda mode
; so they show the normalized rather than the "simplified" goals
(defun agda2-normalized-goal-and-context ()
(interactive)
(agda2-goal-and-context '(3)))
(defun agda2-normalized-goal-and-context-and-inferred ()
(interactive)
(agda2-goal-and-context-and-inferred '(3)))
(eval-after-load "agda2-mode"
'(progn
(define-key agda2-mode-map (kbd "C-c C-,")
'agda2-normalized-goal-and-context)
(define-key agda2-mode-map (kbd "C-c C-.")
'agda2-normalized-goal-and-context-and-inferred)))
; This defines backslash commands for some extra symbols.
(eval-after-load "quail/latin-ltx"
'(mapc (lambda (pair)
(quail-defrule (car pair) (cadr pair) "TeX"))
'( ("\\bb" "") ("\\bl" "") ("\\bs" "")
("\\bt" "") ("\\bv" "") ("\\cv" "⋎")
("\\comp" "∘") ("\\m" "↦") ("\\om" "ω"))))
; This sets the Control-c Control-k shortcut to
; describe the character under your cursor.
(global-set-key "\C-c\C-k" 'describe-char)
(custom-set-variables
'(agda2-include-dirs
(quote ("." "/Users/dylanthiemann/Dropbox/University of Iowa/2nd Senior Year/Spring 2015/PLC/ial")))
)
代码来自Agda：
module bool-kleene-thms where
open import bool
open import bool-kleene
open import eq
&&ₖ-idem : ∀ (b : ₖ) → b &&ₖ b ≡ b
&&ₖ-idem b = {!!}
tt-&&ₖ : ∀ (b : ₖ) → tt &&ₖ b ≡ b
tt-&&ₖ b = {!!}
||ₖ-idem : ∀ (b : ₖ) → b ||ₖ b ≡ b
||ₖ-idem b = {!!}
||ₖ-tt : ∀ (b : ₖ) → b ||ₖ tt ≡ tt
||ₖ-tt b = {!!}
||ₖ-ff : ∀ (b : ₖ) → b ||ₖ ff ≡ b
||ₖ-ff b = {!!}
修改2
Ctrl-u Ctrl-x =对受影响角色的结果：
position: 91 of 830 (11%), column: 2
character: ₖ (displayed as ₖ) (codepoint 8342, #o20226, #x2096)
preferred charset: unicode (Unicode (ISO10646))
code point in charset: 0x2096
script: symbol
syntax: w which means: word
category: .:Base, L:Left-to-right (strong)
to input: type "\_k" with Agda input method
buffer code: #xE2 #x82 #x96
file code: #xE2 #x82 #x96 (encoded by coding system utf-8-unix)
display: terminal code #xE2 #x82 #x96