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Mirrors > Home > HOLE Home > Th. List > ax1 | GIF version |
Description: Axiom Simp. Axiom A1 of [Margaris] p. 49. (Contributed by Mario Carneiro, 9-Oct-2014.) |
Ref | Expression |
---|---|
ax1.1 | ⊢ R:∗ |
ax1.2 | ⊢ S:∗ |
Ref | Expression |
---|---|
ax1 | ⊢ ⊤⊧[R ⇒ [S ⇒ R]] |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wtru 43 | . . . . 5 ⊢ ⊤:∗ | |
2 | ax1.1 | . . . . 5 ⊢ R:∗ | |
3 | 1, 2 | simpr 23 | . . . 4 ⊢ (⊤, R)⊧R |
4 | ax1.2 | . . . 4 ⊢ S:∗ | |
5 | 3, 4 | adantr 55 | . . 3 ⊢ ((⊤, R), S)⊧R |
6 | 5 | ex 158 | . 2 ⊢ (⊤, R)⊧[S ⇒ R] |
7 | 6 | ex 158 | 1 ⊢ ⊤⊧[R ⇒ [S ⇒ R]] |
Colors of variables: type var term |
Syntax hints: ∗hb 3 ⊤kt 8 [kbr 9 kct 10 ⊧wffMMJ2 11 wffMMJ2t 12 ⇒ tim 121 |
This theorem was proved from axioms: ax-syl 15 ax-jca 17 ax-simpl 20 ax-simpr 21 ax-id 24 ax-trud 26 ax-cb1 29 ax-cb2 30 ax-wctl 31 ax-wctr 32 ax-weq 40 ax-refl 42 ax-eqmp 45 ax-ded 46 ax-wct 47 ax-wc 49 ax-ceq 51 ax-wv 63 ax-wl 65 ax-beta 67 ax-distrc 68 ax-leq 69 ax-distrl 70 ax-wov 71 ax-eqtypi 77 ax-eqtypri 80 ax-hbl1 103 ax-17 105 ax-inst 113 |
This theorem depends on definitions: df-ov 73 df-an 128 df-im 129 |
This theorem is referenced by: (None) |
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