Space is the universal axiom that cannot be doubted as to doubt leaves a perceivable sense of emptiness in meaning...and we cycle to the original premise again as we are left describing intuition under spatial terms.
All counting is grounded in forms, where number and form are inseperable as all numbers as entities for counting equating to a form. The simplest form being the number line.
All logic is grounded in forms as the variables are connected to empirical qualities or time itself which is composed of interplaying forms.
All math/logic are inseperable from forms as the symbols which are attached to the forms (being it 1 orange or A=Horse) in turn follow a "formality"...this sounds like a pun but it is not. A form of reasoning is what justifies math and logic.
This form of reasoning is ground in assumed points of reference that follow a linear form. One symbol progresses to another which the progression of the symbols showing how they connect. One symbol goes to many. Logic and math have an inherent underlying spatial form which lies underneath there nature simply by observing its tautological nature.
The number line, the foundation for counting and hence proof, is not only pure form as space but shows how the numbers themselves, such as 1 and 0, existing in a progressively self referencing manner where all numbers are variations of 1, with each number being a variation of further numbers prior to it as well as one.
It is spiral.
Dictionary definitions follow the same spiral pattern as well as well most logical progression.
So when dealing with axioms, we are left with form being self evident strictly because it just "is". Even the nature of the axiom, or self evidence, is assuming an assuming as knowledge and we get an abstract circularity in the nature of assuming.
Any emotion, that we do not perceive as logical, is described under spatial terms: up/down, full/empty, fragmented/unified, etc.