Proof: Do Stack At Unchanged 40

Let's prove the following theorem:

if the following are true:
  • expression state at time 40 = "call_function_begin"
  • stack at time 40 = [ program context with variables: [ ] and expression state: (expression state with parent stack: [ ] arguments: [ ] values: [ ] line: 8 tab: 0) and control map: [ entry 0: (pair ("class", "Person")), [ ] ], [ ] ]

then stack at time 41 = [ program context with variables: [ ] and expression state: (expression state with parent stack: [ ] arguments: [ ] values: [ ] line: 8 tab: 0) and control map: [ entry 0: (pair ("class", "Person")), [ ] ], [ ] ]

Proof:

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Given
1 expression state at time 40 = "call_function_begin"
2 stack at time 40 = [ program context with variables: [ ] and expression state: (expression state with parent stack: [ ] arguments: [ ] values: [ ] line: 8 tab: 0) and control map: [ entry 0: (pair ("class", "Person")), [ ] ], [ ] ]
Proof Table
# Claim Reason
1 stack at time (40 + 1) = stack at time 40 if expression state at time 40 = "call_function_begin", then stack at time (40 + 1) = stack at time 40
2 stack at time (40 + 1) = [ program context with variables: [ ] and expression state: (expression state with parent stack: [ ] arguments: [ ] values: [ ] line: 8 tab: 0) and control map: [ entry 0: (pair ("class", "Person")), [ ] ], [ ] ] if stack at time (40 + 1) = stack at time 40 and stack at time 40 = [ program context with variables: [ ] and expression state: (expression state with parent stack: [ ] arguments: [ ] values: [ ] line: 8 tab: 0) and control map: [ entry 0: (pair ("class", "Person")), [ ] ], [ ] ], then stack at time (40 + 1) = [ program context with variables: [ ] and expression state: (expression state with parent stack: [ ] arguments: [ ] values: [ ] line: 8 tab: 0) and control map: [ entry 0: (pair ("class", "Person")), [ ] ], [ ] ]
3 40 + 1 = 41 40 + 1 = 41
4 stack at time (40 + 1) = stack at time 41 if 40 + 1 = 41, then stack at time (40 + 1) = stack at time 41
5 stack at time 41 = [ program context with variables: [ ] and expression state: (expression state with parent stack: [ ] arguments: [ ] values: [ ] line: 8 tab: 0) and control map: [ entry 0: (pair ("class", "Person")), [ ] ], [ ] ] if stack at time (40 + 1) = stack at time 41 and stack at time (40 + 1) = [ program context with variables: [ ] and expression state: (expression state with parent stack: [ ] arguments: [ ] values: [ ] line: 8 tab: 0) and control map: [ entry 0: (pair ("class", "Person")), [ ] ], [ ] ], then stack at time 41 = [ program context with variables: [ ] and expression state: (expression state with parent stack: [ ] arguments: [ ] values: [ ] line: 8 tab: 0) and control map: [ entry 0: (pair ("class", "Person")), [ ] ], [ ] ]

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