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Expression of type ExprTuple

from the theory of proveit.logic.equality

In [1]:
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 ExprTuple, Function, a, b, beta, c, d, f, g, h, theta
In [2]:
# build up the expression from sub-expressions
expr = ExprTuple(Function(f, [Function(g, [a, b]), Function(h, [c, d])]), Function(f, [Function(g, [a, beta]), theta]))
expr:
In [3]:
# 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
In [4]:
# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())
\left(f\left(g\left(a, b\right), h\left(c, d\right)\right), f\left(g\left(a, \beta\right), \theta\right)\right)
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
wrap_positionsposition(s) at which wrapping is to occur; 'n' is after the nth comma.()()('with_wrapping_at',)
justificationif any wrap positions are set, justify to the 'left', 'center', or 'right'leftleft('with_justification',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0ExprTuple1, 2
1Operationoperator: 4
operands: 3
2Operationoperator: 4
operands: 5
3ExprTuple6, 7
4Variable
5ExprTuple8, 9
6Operationoperator: 13
operands: 10
7Operationoperator: 11
operands: 12
8Operationoperator: 13
operands: 14
9Variable
10ExprTuple18, 15
11Variable
12ExprTuple16, 17
13Variable
14ExprTuple18, 19
15Variable
16Variable
17Variable
18Variable
19Variable