Expression of type Forall

from the theory of proveit.logic.booleans.disjunction

import proveit
# Automation is not needed when building an expression:
proveit.defaults.automation = False # This will speed things up.
proveit.defaults.inline_pngs = False # Makes files smaller.
%load_expr # Load the stored expression as 'stored_expr'
# import Expression classes needed to build the expression
from proveit import A, B, C, D
from proveit.logic import Boolean, Forall, Implies, Not, Or

# build up the expression from sub-expressions
expr = Forall(instance_param_or_params = [A, B, C, D], instance_expr = Or(Not(A), Not(B)), domain = Boolean, conditions = [Or(Not(C), Not(D)), Implies(A, C), Implies(B, D)])

expr:

# check that the built expression is the same as the stored expression
assert expr == stored_expr
assert expr._style_id == stored_expr._style_id
print("Passed sanity check: expr matches stored_expr")

Passed sanity check: expr matches stored_expr

# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())

\forall_{A, B, C, D \in \mathbb{B}~|~(\lnot C) \lor (\lnot D), A \Rightarrow C, B \Rightarrow D}~\left((\lnot A) \lor (\lnot B)\right)

stored_expr.style_options()

name	description	default	current value	related methods
with_wrapping	If 'True', wrap the Expression after the parameters	None	None/False	('with_wrapping',)
condition_wrapping	Wrap 'before' or 'after' the condition (or None).	None	None/False	('with_wrap_after_condition', 'with_wrap_before_condition')
wrap_params	If 'True', wraps every two parameters AND wraps the Expression after the parameters	None	None/False	('with_params',)
justification	justify to the 'left', 'center', or 'right' in the array cells	center	center	('with_justification',)

# display the expression information
stored_expr.expr_info()

	core type	sub-expressions	expression
0	Operation	operator: 1 operand: 3
1	Literal
2	ExprTuple	3
3	Lambda	parameters: 4 body: 5
4	ExprTuple	35, 36, 40, 41
5	Conditional	value: 6 condition: 7
6	Operation	operator: 27 operands: 8
7	Operation	operator: 9 operands: 10
8	ExprTuple	11, 12
9	Literal
10	ExprTuple	13, 14, 15, 16, 17, 18, 19
11	Operation	operator: 38 operand: 35
12	Operation	operator: 38 operand: 36
13	Operation	operator: 25 operands: 22
14	Operation	operator: 25 operands: 23
15	Operation	operator: 25 operands: 24
16	Operation	operator: 25 operands: 26
17	Operation	operator: 27 operands: 28
18	Operation	operator: 30 operands: 29
19	Operation	operator: 30 operands: 31
20	ExprTuple	35
21	ExprTuple	36
22	ExprTuple	35, 32
23	ExprTuple	36, 32
24	ExprTuple	40, 32
25	Literal
26	ExprTuple	41, 32
27	Literal
28	ExprTuple	33, 34
29	ExprTuple	35, 40
30	Literal
31	ExprTuple	36, 41
32	Literal
33	Operation	operator: 38 operand: 40
34	Operation	operator: 38 operand: 41
35	Variable
36	Variable
37	ExprTuple	40
38	Literal
39	ExprTuple	41
40	Variable
41	Variable