{
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   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "False"
      ]
     },
     "execution_count": 1,
     "metadata": {},
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   ],
   "source": [
    "a=5\n",
    "a==6"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "data": {
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     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
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    "a==5"
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  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "True"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "a>=5"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "False"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "a!=5"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "False"
      ]
     },
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "'abcde'=='faghc'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "False"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "'mark'=='mike'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "True"
      ]
     },
     "execution_count": 6,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "'mark'!='mike'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "you can enter\n",
      "move on\n"
     ]
    }
   ],
   "source": [
    "age=19\n",
    "if age >18:\n",
    "    print('you can enter')\n",
    "print('move on')\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "you can enter\n",
      "move on\n"
     ]
    }
   ],
   "source": [
    "age=19\n",
    "if age > 18:\n",
    "    print('you can enter')\n",
    "else:\n",
    "    print('go to meatloaf')\n",
    "print('move on')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "go to pinkloyd\n",
      "move on\n"
     ]
    }
   ],
   "source": [
    "age=15\n",
    "if age>18:\n",
    "    print('you can enter')\n",
    "elif age==18:\n",
    "    print('go to meatloaf')\n",
    "else:\n",
    "    print('go to pinkloyd')\n",
    "print('move on')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "ghost student\n",
      "do something\n"
     ]
    }
   ],
   "source": [
    "graduation_year = 1980\n",
    "graduation_year = 1960\n",
    "if graduation_year>1980:\n",
    "    print('graduation later than 1980')\n",
    "elif graduation_year<1973:\n",
    "    print('ghost student')\n",
    "else:\n",
    "    print('investigate')\n",
    "print('do something')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "valid grad year\n",
      "\n",
      "our student\n"
     ]
    }
   ],
   "source": [
    "grad_year=1980\n",
    "if (grad_year>1979) and (grad_year<1990):\n",
    "    print('valid grad year')\n",
    "print(\"\")\n",
    "print('our student')\n",
    "    "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 26,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "investigate\n",
      "all results subject to verification\n"
     ]
    }
   ],
   "source": [
    "grad_year=1993\n",
    "if (grad_year>1979) and (grad_year<1990):\n",
    "    print('valid grad year')\n",
    "elif (grad_year<=1978) and (grad_year>=1991):\n",
    "    print('not our student')\n",
    "else:\n",
    "    print('investigate')\n",
    "print('all results subject to verification')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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