Description: The slots Base and .ef are different. (Contributed by AV, 21-Sep-2020)
Ref | Expression | ||
---|---|---|---|
Assertion | basendxnedgfndx | ⊢ ( Base ‘ ndx ) ≠ ( .ef ‘ ndx ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | basendxnn | ⊢ ( Base ‘ ndx ) ∈ ℕ | |
2 | 1 | nnrei | ⊢ ( Base ‘ ndx ) ∈ ℝ |
3 | baseltedgf | ⊢ ( Base ‘ ndx ) < ( .ef ‘ ndx ) | |
4 | 2 3 | ltneii | ⊢ ( Base ‘ ndx ) ≠ ( .ef ‘ ndx ) |