fixed again, thanks Alex for your detailed reviews I have learned alot :)

src/main/java/edu/msudenver/tsp/website/Application.java

@@ -1,16 +1,14 @@
-package edu.msudenver.tsp.website.controller;
-
-
+package edu.msudenver.tsp.website;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 @SpringBootApplication
 
-
 public class Application {
 
-    public static void main(final String[] args) {
+    public static void main(final String[] args)
+    {
         SpringApplication.run(Application.class, args);
     }
 

src/main/java/edu/msudenver/tsp/website/controller/TheoremEntryController.java

@@ -6,6 +6,8 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.servlet.ModelAndView;
@@ -13,31 +15,20 @@ import org.springframework.web.servlet.ModelAndView;
 @Slf4j
 @Controller
 @AllArgsConstructor
+@RequestMapping("/theorem")
 public class TheoremEntryController {
-
-
-
-    @RequestMapping("/theorem")
-    public ModelAndView theoremPage()
+    @GetMapping({"/",""})
+    public ModelAndView enterTheoremPage()
     {
-
-
         return new ModelAndView("Theorem");
     }
 
-
-    @RequestMapping(value = "/save", method = RequestMethod.POST)
+    @PostMapping({"/",""})
     public String saveTheorem(@Validated Theorem theorem, Model model) {
 
-        model.addAttribute("theromName", theorem.getTheoremName());
+        model.addAttribute("theromName1", theorem.getTheoremName1());
+        model.addAttribute("theromName2", theorem.getTheoremName2());
 
         return "success";
     }
-
-
-    public ModelAndView firstPage() {
-        return new ModelAndView("welcome");
-    }
-}
-
-
+}

src/main/java/edu/msudenver/tsp/website/controller/forms/Theorem.java

@@ -3,23 +3,14 @@ package edu.msudenver.tsp.website.controller.forms;
 import lombok.Getter;
 import lombok.Setter;
 
+import javax.validation.constraints.NotBlank;
+
 @Getter
 @Setter
-
 public class Theorem {
-    private String theoremName ;
-
-
-    public String getTheoremName() {
-        return theoremName;
-    }
-
-    public void setTheoremName1(String theoremName) {
-        this.theoremName = theoremName;
-    }
-
-
-
-
+    private String theoremName1 ;
+    private String theoremName2 ;
+    @NotBlank(message = "Theorem name must not be blank") private String theoremName;
+    private String theorem;
 
 }